NEET Chemistry Hydrogen Questions Solved

NEET - 2016

Which of the following statements about hydrogen is incorrect?

(a) Hydrogen never acts as cation in Ionic salts

(b) Hydronium ion ,H3O+ exists freely in solution

(c) Dihydrogen does not act as a reducing agent

(d) Hydrogen has three isotopes of which tritium is the most common

(c,d) 

For ionic salts, hydrogen never behaves as cation, but behaves as anion (H-).

H3O+ exists freely in solution.

Dihydrogen acts as a reducing agent.

Hydrogen has three isotopes.

Protium(11H)

Deuterium (21 H)

Tritium (31 H)

Protium is the most common isotopes of hydrogen with an abundance of 99.98%.

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