Chemistry
Select the correct answer from A, B, C, D or E for each statement given below:
A: Nickel
B: Sodium
C: Iron
D: Iron [III] oxide
E: Magnesium oxide
A metal which reacts with water to give a metallic hydroxide & liberate hydrogen.
The metallic compound used as a catalyst in Bosch process.
The metal used as a catalyst in hydrogenation of oils.
The metal which reacts with steam liberating hydrogen & the reaction is reversible.
The metallic compound formed when a metal above aluminium in the activity series reacts with steam.
Hydrogen
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Answer
A metal which reacts with water to give a metallic hydroxide & liberate hydrogen — B: Sodium
The metallic compound used as a catalyst in Bosch process — D: Iron [III] oxide
The metal used as a catalyst in hydrogenation of oils — A: Nickel
The metal which reacts with steam liberating hydrogen & the reaction is reversible — C: Iron
The metallic compound formed when a metal above aluminium in the activity series reacts with steam — E: Magnesium oxide
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Related Questions
Give balanced equations for the following conversions:
Zinc to sodium zincate - using an alkali.
Acidified water to hydrogen - by electrolysis.
Water gas to hydrogen - industrially.
Iron [III] oxide to iron - using hydrogen.
Nitrogen to a basic gas - using hydrogen.
Give reasons for the following:
Copper does not displace hydrogen from dilute hydrochloric acid, but zinc does.
In the preparation of hydrogen by electrolysis of water - the distilled water used is acidified.
In the laboratory preparation of hydrogen from zinc and dilute hydrochloric acid the zinc used is granulated zinc.
In Bosch process - the final gaseous products are passed through caustic potash [KOH] soln.
The reaction of chlorine with hydrogen sulphide is deemed a redox reaction.
Select the correct answer from the choice in bracket to complete each sentence.
The acid …………… [dil.H2SO4, dil. HNO3, dil. HCl] is not used in the laboratory preparation of hydrogen, using zinc and an acid.
In Bosch process the catalytic reduction of steam to hydrogen is carried out by …………… [CO2, CO, C].
A foul smelling gas formed when hydrogen reacts with a molten non-metal is …………… [hydrogen chloride, hydrogen sulphide, ammonia].
The product formed on combustion of hydrogen in air is …………… [water gas, water, producer gas].
The gas which has now replaced hydrogen in air balloons is …………… [argon, helium, neon]
Match the statements in List I with the appropriate answer in List II.
List I List II 1. An atom of hydrogen A: Chromic oxide 2. A strong oxidising agent B: Ammonia 3. A promoter used in Bosch process C: Iron 4. A chemical used in the manufacture of fertilizers D: One electron 5. The catalyst used in production of a basic gas from nitrogen E: Dilute nitric acid