1
MCQ (More than One Correct Answer)

NEET 2016 Phase 1

Which of the following statements about hydrogen is incorrect?
A
Hydronium ion, H3O+ exists freely in solution.
B
Dihydrogen does not act as a reducing agent.
C
Hydrogen has three isotopes of which tritium is the most common.
D
Hydrogen never acts as cation in ionic salts.

Explanation

Dihydrogen acts as a powerful reducing agent and reduces metal oxides such as CuO, ZnO, PbO and Fe3O4 to their respective metals.

CuO + H2 $$ \to $$ Cu + H2O

ZnO + H2 $$ \to $$ Zn + H2O

Fe3O4 + 4H2 $$ \to $$ 3Fe + 4H2O

Hydrogen has three isotopes of which protium is the most common and tritium is radioactive.

Questions Asked from Hydrogen

On those following papers in MCQ (Multiple Correct Answer)
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NEET 2016 Phase 1 (1)
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