Preparation of Hydrogen

Author:Namrata & S P Singh
8th ICSE
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Important Questions on Preparation of Hydrogen

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Concise Chemistry Middle School for Class 8>Hydrogen>Preparation of Hydrogen> Q 1

How is hydrogen separated from carbon dioxide and carbon monoxide in Bosch process?

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Concise Chemistry Middle School for Class 8>Hydrogen>Preparation of Hydrogen> Q 2

Give equations for the reactions involved in the Bosch process.

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Concise Chemistry Middle School for Class 8>Hydrogen>Preparation of Hydrogen> Q 3

Name a process by which hydrogen gas is manufactured.

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Concise Chemistry Middle School for Class 8>Hydrogen>Preparation of Hydrogen> Q 4

How is hydrogen gas collected? Why?

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Concise Chemistry Middle School for Class 8>Hydrogen>Preparation of Hydrogen> Q 5

Draw a neat and well-labelled diagram for the laboratory preparation of hydrogen.

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Concise Chemistry Middle School for Class 8>Hydrogen>Preparation of Hydrogen> Q 6

Give a balanced chemical equation for the preparation of hydrogen gas in the laboratory.

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Concise Chemistry Middle School for Class 8>Hydrogen>Preparation of Hydrogen> Q 7

Name the chemicals required to prepare hydrogen gas in the laboratory.

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Concise Chemistry Middle School for Class 8>Hydrogen>Preparation of Hydrogen> Q 8

Water gas is a mixture of

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Concise Chemistry Middle School for Class 8>Hydrogen>Preparation of Hydrogen> Q 9

In metal reactivity series the more reactive metals are at

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Concise Chemistry Middle School for Class 8>Hydrogen>Preparation of Hydrogen> Q 10

The metal which reacts with cold water to produce hydrogen is

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Concise Chemistry Middle School for Class 8>Hydrogen>Preparation of Hydrogen> Q 11

Name a metal which liberates hydrogen only when steam is passed over red-hot metal.

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Concise Chemistry Middle School for Class 8>Hydrogen>Preparation of Hydrogen> Q 12

Name the two metals which give hydrogen with cold water.

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Concise Chemistry Middle School for Class 8>Hydrogen>Preparation of Hydrogen> Q 13

Give reason, nitric acid is not used for the preparation of hydrogen gas.

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Concise Chemistry Middle School for Class 8>Hydrogen>Preparation of Hydrogen> Q 14

Give reason, though hydrogen is lighter than air it cannot be collected by downward displacement of air.

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Concise Chemistry Middle School for Class 8>Hydrogen>Preparation of Hydrogen> Q 15

Complete and balance the following equation:

K+H2O→______ + _____

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Concise Chemistry Middle School for Class 8>Hydrogen>Preparation of Hydrogen> Q 16

Complete and balance the following equation:

Fe+H2O→______ + _____

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Concise Chemistry Middle School for Class 8>Hydrogen>Preparation of Hydrogen> Q 17

Complete and balance the following equation:

Zn+_____ →ZnCl2+H2

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Concise Chemistry Middle School for Class 8>Hydrogen>Preparation of Hydrogen> Q 18

Nitric acid can not be used to prepare hydrogen by its action on active metals.