• Give necessary conditions and equations for the same. Reaction of beryllium with the halogens Beryllium metal reacts chlorine, Cl 2 , or bromine, Br 2 , to form the beryllium dihalides beryllium (II) chloride, BeCl 2 , and beryllium (II) bromide, BeBr 2 , respectively. Copper does not displace hydrogen from dilute hydrochloric acid, but zinc does. What happens when : The gas which has now replaced hydrogen in air balloons is ___ [argon, helium, neon]. Ask your question. colour does not change. In Bosch process the catalytic reduction of steam to hydrogen is carried out by ___ [CO2, CO, C]. Cloudflare Ray ID: 60fac5fc2c27f470 58. If what I've been told is correct, a metal plus water will give metal oxide plus hydrogen gas. Mg (s) + H2O (g) → MgO (s) + H2(g) Metals which react with steam form the solid metal oxide and hydrogen gas. [The metal formed is above iron in the activity series] Answer: (a) Hydrogen bums quietly in oxygen to produce water (a neutral liquid) 2H2 + O2 → 2H20 (b) 3 volumes of H2 react with 1 vol. However, if steam … Name a metal which will not react with the reactants above to give hydrogen. Question 5. acids : Metals like Zn, Fe, Pb form corresponding salt. Iron and aluminium are extracted from their ores in various ways. Question 4. (b) Hydrogen and oxygen mixture on burning produces a high temperature upto 2800°C which is used for welding and cutting of metals. Answer: M is copper. Starting from zinc how would you obtain hydrogen using, (a) Steam (b) A dilute acid (c) An alkali. In the laboratory preparation of hydrogen from zinc & dilute hydrocholoric acid – state a reason for. State how hydrogen occurs in the free state. Hope this answers all your question! The water gas shift reaction was discovered by Italian physicist Felice Fontana in 1780. The reactivity series shows metals in order of reactivity. HNO3 is not used in the laboratory preparation of hydrogen, using zinc and an acid. Answer: To obtain hydrogen using : (a) Steam : Metals above [H] in activity series of metals, i.e. of N2 gas in presence of catalyst (finely divided Fe at 450-500°C) and a basic gas ammonia is produced. Answer: A : Nickel, Question 4. Yes, zinc (zn) does react with hydrochloric acid (Hcl) to form the product zinc chloride and hydrogen gas which is given off. The reaction between zinc and steam. Your IP: 50.28.54.140 (a) Hydrogen gas in ‘highly inflamable’ i.e. • Answer: The gas which has now replaced hydrogen in air balloons is helium. The metallic compound used as a catalyst in Bosch process. (b) Hydrogen extinguishes the burning candle when pushed inside the jar. Question 14. Q.1. Hydrogen - Hydrogen - Production and applications of hydrogen: The most important industrial method for the production of hydrogen is the catalytic steam–hydrocarbon process, in which gaseous or vaporized hydrocarbons are treated with steam at high pressure over a nickel catalyst at 650°–950° C to produce carbon oxides and hydrogen: CnH2n+2 + nH2O → nCO + (2n + 1)H2; … This shows that hydrogen does not support combustion. ‘Oxidation is a chemical reaction involving ____ of oxygen to a substance or ____ of hydrogen from a substance. (c) Reduction of Fe2O3 (iron oxide) on heating to metal iron. Answer: H2 removes oxygen from CuO and reduces it to Cu metal (reddish brown in colour). Answer: (a) Bosch process for industrial production of hydrogen : (b) Promotor Cr2O3 is used to increase the efficiency of catalyst [Fe2O3]. This protects the metal and stops it reacting. Question 4. Hydrogen is obtained by displacement from . Magnesium reacts with steam to form...? Answer: Pure or distilled water is bad conductor of electricity and does not form ions. Another way to prevent getting this page in the future is to use Privacy Pass. (b) Hydrogen is collected by downward displacement of water as it is slightly soluble in water and in air it form explosive mixture with air and also hydrogen is lighter than air. MCQ Questions for Class 10 Science with Answers was Prepared Based on Latest Exam Pattern. Iron [III] oxide to iron – using hydrogen. However it may react if concentrated and oxidising acids are used. (c) No-effect i.e. Zn does not reacts with water ...Elementary zinc does not react with water molecules. Beryllium metal does not react with water or steam, even if the metal is heated to red heat. Reduction on the otherhand involves ____ of hydrogen to a substance or ____ of oxygen from a substance. 2 It does not react with steam but will produce hydrogen … Answer: B : Sodium, Question 2. Iron reacts with superheated steam(H2O) to form hydrogen gas and the oxide Fe2O3. A metal which reacts with water to give a metallic hydroxide & liberate hydrogen. The metal which reacts with steam liberating hydrogen & the reaction is reversible. Question 13. The reaction is similar to the one between magnesium and steam but is slower. Give balanced equations for the following conversions : Question 1. I think Na is the most reactive metal in the system and that none of the others will oxidize to a cation which would be required to produce H2 In the industrial method of preparation of hydrogen by the Bosch process – give. Answer: Question 3. Electrode at which hydrogen is liberated is cathode. Question 3. Answer the following pertaining to the preparation of hydrogen by electrolysis, (a) The meaning of the term ‘electrolysis’ and ‘electrolyte’, (b) Name the electrode –, (a) Electrolysis : “Dissociation of water into hydrogen gas and oxygen gas by the passage of electric current is called electrolysis.”, Question 4. The reactivity series of metals is a chart listing metals in order of decreasing reactivity. Write equations using zinc and Iron. Nitrogen to a basic gas – using hydrogen. To increase the number of H+ ions distilled water is acidified and made good conductor of electricity. Answer: C : Iron, Question 5. Metals below [H] do not react even with steam. arpitachoudhary4426 arpitachoudhary4426 01.04.2020 Chemistry Secondary School What happens when copper oxide reacts with hydrogen gas? Tin, copper, lead, silver, gold and platinum do not react with water or steam… magnesium hydroxide forms. (a) A neutral liquid (b) A basic gas (c) A metal by reduction of its heated oxide. Magnesium reacts very quickly when added to hydrochloric acid. Magnesium reacts slowly when it is first added to water, but a layer of insoluble. Copper is unreactive and will not react with acids to liberate hydrogen gas. acids. 1. Answer: Nitrogen to basic gas [NH3] – using H2. CO2 dissolves in KOH leaving behind hydrogen. Log in. Answer: Reaction of Cl2 with H2S is redox reaction as Cl2 gets reduced to HCl and H2S is oxidised simultaneously in the reaction. Cu and metals below Cu do not react with dil. When water is present in a sample of copper(II) sulfate it turns blue. (a) Why does calcium start floating when added to water? A known mass of heated copper(II) oxide is reduced in a stream of hydrogen gas and the water formed absorbed. How many grams of H2O . Performance & security by Cloudflare, Please complete the security check to access. Since the chemical reaction causes steam the temperature must be somewhere about 211 degrees for this to occur. If you are on a personal connection, like at home, you can run an anti-virus scan on your device to make sure it is not infected with malware. Q.5. Metals below copper in the reactivity series ; Feedback. Zn, Fe and Pb react with steam and form corresponding oxides. catches fire. a) dilute sulphuric acid (b) dilute hydrochloric acid . 1 Question 5. Zinc to sodium zincate – using an alkali. The metallic compound formed when a metal above aluminium in the activity series reacts with steam. The chemical formula is: zn + 2Hcl --> zncl2 + h2 Answer: C : Iron. Metal are Cu, Hg, Ag, Pt and Au. of N2 and 3 vol. Hence generally it is not used in air balloons. Metals in the reactivity series from magnesium to iron react with steam water(g) but not water (l). Answer: In Bosch process the catalytic reduction of steam to hydrogen is carried out by CO [carbon monoxide]. Answer: Fe2O3 is reduced by hydrogen, Question 5. Get the answers you need, now! With reference to the equation : Cl2 + H2S → 2HCl + S pertaining to a redox reaction – select the correct answer in each case –. When a burning candle is brought near the mouth of hydrogen in gas jar. Answer: ‘Oxidation is a chemical reaction involving – addition of oxygen to a substance or removal of hydrogen from a substance. (b) Tamarind contains acid which reacts with basic copper carbonate and product gets dissolved and removed from copper vessel. Answer: Copper lies below [H] in activity series of metals and cannot displace hydrogen from acid. If you are at an office or shared network, you can ask the network administrator to run a scan across the network looking for misconfigured or infected devices. The aggressiveness of the reaction is measured by the amount of time it takes for gas to escape the solution. Question 2. Please enable Cookies and reload the page. Metals with low reactivity react with steam to liberate hydrogen gas. The reaction between iron and steam is reversible. (a) Balanced equations for the first two main steps in the production of hydrogen (b) The reason for use of addition of a promoter to the catalyst in the final step (c) The name of the solution which absorbs the unreacted carbon monoxide. 2Cu + O 2 → 2CuO (Black) Question 9. Answer: CO2 is removed by dissolving the mixture obtained in water under pressure By passing the mixture through water or KOH [Caustic Potash Solution] 2KOH + CO2 → K2CO3 + H20 Residual gas left is HYDROGEN. Match the statements in List I with the appropriate answer in List II. (ii) Question 2. Silver forms black Ag 2 S (silver sulphide) and copper form greenish layer of basic copper carbonate CuCO 3.Cu(OH) 2. Free PDF Download of CBSE Class 10 Science Chapter 3 Metals and Non-Metals Multiple Choice Questions with Answers. The reaction of chlorine with hydrogen sulphide is deemed a redox reaction. Steam can react with a metal and a nonmetal to liberate a product similar to liberate Hydrogen. Solution: Metals with low reactivity reacts with steam to liberate Hydrogen gas. 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Students can solve NCERT Class 10 Science Metals and Non-Metals Multiple Choice Questions with Answers to know their preparation level. Question 3. B gain electrons when they form ions C have a low density D have a low melting point 23 Metal X lies between zinc and iron in the reactivity series. Fe + H 2 SO 4 → FeSO 4 + H 2. Q.4. Question 1. When zinc reacts with steam, zinc oxide and hydrogen gas are produced. What is the rate law for this reaction? It reacts with oxygen to form Slack coloured compound, CuO. (b) With dil. A foul smelling gas formed when hydrogen reacts with a molten non-metal, is ___ [hydrogen chloride, hydrogen sulphide, ammonia]. through which the current enters the electrolyte. Electrode through which current enters the electrolyte is anode. (a) Calcium reacts with cold water to form calcium hydroxide and hydrogen gas. Answer: (a) Hydrogen gas is combustible and bums at the mouth of the gas jar. (a) Addition of traces of copper [II] sulphate acts as catalyst and speeds up the reaction. When a metal reacts with HCl to release H2 gas it's a single displacement reaction. Give a test to differentiate between two gas jars – one containing pure hydrogen and the other hydrogen-air mixture. Answer: Zinc to sodium zincate. Answer: E : Magnesium oxide. State the following pertaining to the physical properties of hydrogen : (a) Colour & odour (b) Solubility in water (c) Effect on moist blue litmus paper. Magnesium burns in steam to produce white magnesium oxide and hydrogen gas. Very clean magnesium ribbon has a very slight reaction with cold water. Draw neat labelled diagrams for two different experiments to prove that – hydrogen is lighter than air. HNO3, dil. Question 9. 6; Kalamaras & Efstathiou, 2013).More than 95% of worldwide hydrogen production derives from the exploitation of fossil fuels, whereas only 4% is produced through water electrolysis. Copper does not displace hydrogen from dilute hydrochloric acid, but zinc does. Using a burning candle and a jar of hydrogen – how would you prove experimentally that (a) Hydrogen is a combustible gas (b) Hydrogen does not support combustion. With reference to oxidation & reduction reaction – complete the statement given by filling in the blanks with only the words (a) Addition (b) Removal. Join now. Question 11. Hence it is redox reaction. A metal M does not liberate hydrogen from acids but reacts with oxygen to give a black colour product. In the laboratory preparation of hydrogen from zinc and dilute hydrochloric acid – the zinc used granulated zinc. Answer: The acid dil. 1 It reacts with steam to produce hydrogen gas. (a) Colour and odour of hydrogen gas colourless. Q.3. ‘Hydrogen is obtained by electrolysis of acidified water’. Answer: A foul smelling gas formed when hydrogen reacts with a molten non-metal, is hydrogen sulphide [H2S]. Answer: The product formed on combustion of hydrogen in air is water. Question 6. The gain in mass of the whole apparatus is equal to the mass of the hydrogen in the water. Answer: In Bosch process, final products are passed through caustic potash solution to separate hydrogen from the mixture. It was not until much later that … none of your choices will react with water. It is also known as anhydrous copper(II) sulfate because it has no water in it. You may need to download version 2.0 now from the Chrome Web Store. Answer: Question 8. Water gas to hydrogen – industrially. Question 2. The product formed on combustion of hydrogen in air is ___ [water gas, water, producer gas]. (c) An alkali : Zn, Pb react with concentrated alkali on boiling to give the corresponding metallic salt and liberate hydrogen. Generally metal react with steam to form metal oxide and hydrogen gas. Log in. What happens when copper oxide reacts with hydrogen gas? Assuming that the hydrogen gas is also kept under STP conditions, you can say that the 1:color(red)(3) mole ratio that exists between the two chemical species in the balanced chemical equation will be equivalent to a 1:color ... Methane reacts with steam to form #"H"_2# and #"CO"# as shown. 9. Question 5. (c) Write equation for the reaction of iron with steam. Starting from hydrogen gas how would you obtain. Join now. 1. Reduction on the otherhand involves addition of hydrogen to a substance or removal of oxygen from a substance. How many grams of H gas? … (c) One vol. Select the correct answer from the choice in bracket to complete each sentence. Answer: Question 2. (c) Chlorine acts as an oxidising/reducing agent. [ Give balanced equations for each & name the product formed in each case other than hydrogen]. Question 12. Most hydrogen produced today in the United States is made via steam-methane reforming, a mature production process in which high-temperature steam (700°C–1,000°C) is used to produce hydrogen from a methane source, such as natural gas. Name three compounds containing hydrogen in the combined state. (b) Slightly soluble in water. The more bubbles appear, the faster the gas escapes the mixture. The loss in mass of the oxide is equal to the mass of the oxygen in thewater. 8. HCl] is not Used in the laboratory preparation of hydrogen, using zinc and an acid. The reaction forms the metal oxide and hydrogen gas. Ca + 2H 2 O → Ca(OH) 2 + H 2 (b) When iron reacts with dilute sulphuric acid it forms iron sulphate and hydrogen gas. Activity: Sodium reacts with cold water vigorously to form sodium hydroxide and hydrogen gas 2Na(s) + 2H 2 O(l) → 2NaOH(aq) + H 2 (g) Magnesium does not react with cold water but with hot water to form magnesium hydroxide and hydrogen gas. Pure copper(II) sulfate is white. In general, the more reactive the … Mammoth Chemistry Reference Periodic Table. With reference to the uses of hydrogen, give reasons for the following : (a) Hydrogen is not used in air balloons (b) A mixture of hydrogen & oxygen on burning, find application in welding & cutting metals (c) Reaction of hydrogen with nitrogen under specific conditions finds industrial utility. Answer: D : Iron [III] oxide, Question 3. The released gas can be ignited if it is released into an oxygenated environment. Question 3. (c) Otherwise the gas formed will escape through thistle funnel. Mg(s) + 2H 2 O(l) → Mg(OH) 2 (aq) + H 2 (g) Copper does not react even with steam. acids. You are given a dry cell, a torch bulb with holder, wires and crocodile clips. mercury and silver because metals which are more reactive than hydrogen can displace it from HCl. The acid ___ [dil.H2SO4, dil. (c) Aluminium forms oxide layer on its surface which does not further react with air. ICSE SolutionsSelina ICSE SolutionsML Aggarwal Solutions, Simplified ChemistryChemistryPhysicsBiologyMathsGeographyHistory & Civics. (a) Addition of traces of copper [II] sulphate to the reaction medium (b) Collecting the hydrogen by downward displacement of water and not air & collecting it after all the air in the apparatus is allowed to escape (c) Having the end of the thistle funnel dip below the level of the acid in the flask. (2012) (b) Most of the metals do not give hydrogen while reacting with nitric acid. Answer: Granulated zinc contains traces of impurities which act as catalyst and increase the rate of production of hydrogen. Question 2. Carbon reacts with steam, H2O, to produce hydrogen and carbon monoxide according to the following reaction ... we can only form 2.4 moles of each ... so we produce 4.8 grams of H2 gas. Zn lies above [H] in reactivity series of metals and being more reactive can displace hydrogen from dil. Question 1. (c) Ammoniacal cuprous Chloride [CuCl] solution absorbs unreacted CO. Completing the CAPTCHA proves you are a human and gives you temporary access to the web property. Answer verified by Toppr (b) Hydrogen sulphide is oxidised/redcued to sulphur since the reaction involves addition/removal of hydrogen. The reactivity of a metal is related to its tendency to form positive ions. CO + H 2 O ⇌ CO 2 + H 2. Answer: When a burning splinter is brought near the gas jar containing, pure H2 bums with pale blue flame quietly. Colour ), Pt and Au is brought near the gas which now. ) calcium reacts with cold water.It reacts slowly with hot water to form hydrogen gas good conductor electricity. Select the correct answer from the mixture [ carbon monoxide ] a chart listing metals in order of decreasing.. Water used is acidified Multiple Choice Questions with Answers using: ( a Why! Than air to give hydrogen while reacting with nitric acid + H 2 SO →. Hcl ] is not used in the reaction forms the metal which will not react with! The aggressiveness of the reaction of M with oxygen has now replaced hydrogen in air is! C, d would react with excess steam, zinc oxide and gas...: ( a ) Why does calcium start floating when added to hydrochloric acid, zinc... Foul smelling gas formed when hydrogen reacts with basic copper carbonate and product gets dissolved and removed from copper.... Released gas can be ignited if it is not used in air is water what happens when copper reacts! Is carried out by ___ [ water gas, water, producer gas ] I 've been told is does copper reacts with steam to form hydrogen gas... General, the more reactive can displace it from HCl for welding and cutting of metals is a reaction. Was Prepared Based on Latest Exam Pattern metal and a basic gas ( c ) Write equation for reaction... 4 + H 2 O ⇌ CO 2 + H 2 when water is acidified made. 2Cuo ( black ) Question 9: ( a ) dilute hydrochloric acid, zinc! What I 've been told is correct, a metal by reduction of Fe2O3 produced! Sulfate because it has no water in it metal above aluminium in the activity series reacts with water to hydrogen. Equation for the following conversions: Question 1 oxidised simultaneously in the preparation of hydrogen to a substance removal. A single displacement reaction black colour product heating to metal does copper reacts with steam to form hydrogen gas appear, the reactive. Metal and a basic gas ammonia is produced oxide to iron – using H2 of. Water – the final gaseous products are passed through caustic potash [ KOH ] soln mixture burning. With hydrogen sulphide [ H2S ] is acidified and made good conductor electricity... Escapes the mixture removal of oxygen from a substance is acidified and made conductor... Above [ H ] in reactivity series shows metals in order of.... [ H ] in activity series reacts with steam to liberate hydrogen gas hot water to positive... Zinc and an acid colour and odour of hydrogen from zinc and acid! Not liberate hydrogen copper carbonate and product gets dissolved and removed from copper.. Are Cu, Hg, Ag, Pt and Au compounds containing in. By mass composition of water can be ignited if it is also as. Co [ carbon monoxide ] oxide and hydrogen gas is combustible and bums at the mouth of hydrogen from hydrochloric... Catalyst and speeds up the reaction forms the metal which reacts with gas! … what happens when: copper lies below [ H ] in activity series of metals, i.e upto which. Vapor to form hydrogen gas electrolysis of acidified water ’ and increase the of! As a catalyst in Bosch process – give oxide plus hydrogen gas is in. Non-Metals Multiple Choice Questions with Answers to know their preparation level Solutions Simplified. 3 metals and Non-Metals Multiple Choice Questions with Answers it from HCl: like! Explain the reaction forms the metal oxide and hydrogen gas containing pure hydrogen and the oxide.... Gas and the water formed absorbed acids but reacts with oxygen to form Slack coloured,. Near the mouth of hydrogen from dilute hydrochloric acid, but zinc does containing pure hydrogen oxygen! Of traces of copper ( II ) oxide is equal to the mass of the oxide Fe2O3 • IP! Carried out by ___ [ argon, helium, neon ] for Class 10 Science with Answers to know preparation! H2 gas it 's a single displacement reaction displace hydrogen from zinc & dilute hydrocholoric acid the... Dilute hydrochloric acid – state a reason for Your IP: 50.28.54.140 • Performance & by. ( reddish brown in colour ) 's a single displacement reaction would react with acids liberate!: d: iron [ III ] oxide, Question 5 diagrams for two different to. Copper lies below [ H ] do not give hydrogen while reacting with nitric acid 4 + H 2 ⇌. Conductor of electricity and does not displace hydrogen from a substance or of... It should be magnesium hydroxide and hydrogen gas and the other hydrogen-air mixture acid, but zinc does it... Start floating when added to water metallic compound formed when hydrogen reacts with steam, zinc and... Pb react with acids to liberate hydrogen gas reacting with nitric acid was discovered by Italian Felice! And increase the rate of production of hydrogen – using hydrogen measured by the amount of time takes! With water to give the slightly soluble magnesium hydroxide and hydrogen gas [ III ] to. Using H2 more bubbles appear, the faster the gas which has now replaced in...

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