Hydrogen

Hydrogen - Topic Wise Multiple Choice Questions (MCQ)

Cracktest Topic Wise free Hydrogen MCQ for 11th 12th exam Practice Multiple Choice Questions and answer for JEE-mains State CET Engineering Entrance GATE free Online Test



1 )

H2O2 is not used as

Oxidizing agent
Reducing agent
Catalyst
Bleaching


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2 )

The conversion of atomic hydrogen to dihydrogen is :

endothermic change
Photochemical change
exothermic change
Nuclear change


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3 )

Hydrogen gas can be produced from

Water gas
producer gas
coal gas
air


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4 )

Statement S: The position of hydrogen is not fixed,

Statement R: Hydrogen resembles alkali metals because of its stable +1 oxidation state.

S & R both are correct
S is correct R is correct and explains S
S is incorrect R is correct
S is correct R is incorrect


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5 )

When Zn pieces are dropped in NaOH solution H2(g) is obtained and soluble ...... is obtained

Na2ZnO3
Na4ZnO3
NaZnO2
Na3ZnO2


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