EASY
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When same amount of zinc is treated separately with excess of sulphuric acid and excess of sodium hydroxide solution, the ratio of volumes of hydrogen gas evolved is :

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Important Questions on Hydrogen

EASY
Chemistry>Inorganic Chemistry>Hydrogen>Preparation of Dihydrogen
If steam is passed over red hot coke
MEDIUM
Chemistry>Inorganic Chemistry>Hydrogen>Preparation of Dihydrogen
Which of the following is water-gas shift reaction?
EASY
Chemistry>Inorganic Chemistry>Hydrogen>Preparation of Dihydrogen
The metal which gives hydrogen on reacting with acid as well as NaOH is
EASY
Chemistry>Inorganic Chemistry>Hydrogen>Preparation of Dihydrogen
Among Mg, Cu, Fe, Zn the metal that does not produce hydrogen gas in reaction with hydrochloric acid is
EASY
Chemistry>Inorganic Chemistry>Hydrogen>Preparation of Dihydrogen

The equation that represents the water-gas shift reaction is :

EASY
Chemistry>Inorganic Chemistry>Hydrogen>Preparation of Dihydrogen
Which among the following pairs of substrates on reaction, does not evolve hydrogen gas.
EASY
Chemistry>Inorganic Chemistry>Hydrogen>Preparation of Dihydrogen

In water-gas shift reaction, hydrogen gas is produced from the reaction of steam with.

EASY
Chemistry>Inorganic Chemistry>Hydrogen>Preparation of Dihydrogen
In the industrial production of which of the following, molecular hydrogen is obtained as a bye product.
EASY
Chemistry>Inorganic Chemistry>Hydrogen>Preparation of Dihydrogen
Which of the following reactions increases the production of dihydrogen from synthesis gas?
EASY
Chemistry>Inorganic Chemistry>Hydrogen>Preparation of Dihydrogen
Which of the following reactions is an example of use of water gas in the synthesis of other compounds?
EASY
Chemistry>Inorganic Chemistry>Hydrogen>Preparation of Dihydrogen
(i) The gas which is common in both 'water gas' and 'producer gas' is ________
(ii) Producer gas consists of a mixture of ________ and _______ gases in the ratio 2 : 1.
EASY
Chemistry>Inorganic Chemistry>Hydrogen>Preparation of Dihydrogen
The synonym for water gas when used in the production of methanol is:
HARD
Chemistry>Inorganic Chemistry>Hydrogen>Preparation of Dihydrogen

Which gas is evolved at the anode during the electrolysis of KHF2 in anhydrous HF?

EASY
Chemistry>Inorganic Chemistry>Hydrogen>Preparation of Dihydrogen
Given below are two statements :
Statement I : The process of producing syn-gas is called gasification of coal.
Statement II : The composition of syn-gas is CO+CO2+H2(1:1:1).
In the light of the above statements, choose the most appropriate answer from the options given below :
MEDIUM
Chemistry>Inorganic Chemistry>Hydrogen>Preparation of Dihydrogen
The highest industrial consumption of molecular hydrogen is to produce compound of element :
MEDIUM
Chemistry>Inorganic Chemistry>Hydrogen>Preparation of Dihydrogen
Write the chemical equation for industrial production of dihydrogen gas and write its two uses.
MEDIUM
Chemistry>Inorganic Chemistry>Hydrogen>Preparation of Dihydrogen
High purity >99.95% dihydrogen is obtained by
EASY
Chemistry>Inorganic Chemistry>Hydrogen>Preparation of Dihydrogen
The metal that produces H2 with both dil HCl and NaOH(aq) is
MEDIUM
Chemistry>Inorganic Chemistry>Hydrogen>Preparation of Dihydrogen
Dihydrogen of high purity >99.95 % is obtained through :
EASY
Chemistry>Inorganic Chemistry>Hydrogen>Preparation of Dihydrogen
Identify the reaction which does not liberate hydrogen