Question

Dihydrogen on the industrial scale is prepared by the water gas shift reaction from petrochemical. It is obtained as a byproduct by the electrolysis of brine. Which of the following is not true regarding hydrogen :–

(a) Hydrogen forms complexes in +1 as well as – 1 oxidation state

(b) Hydrogen has more than one isotopes

(c) Hydrogen has mainly two allotropes

(d) Sum of electron, proton and neutron of lightest isotope of hydrogen is one.

Answer 1

Correct option (d) Sum of electron, proton and neutron of lightest isotope of hydrogen is one.

Explanation:

All statements are correct except (d) which should be sum of electron, proton and neutron of lightest isotope of hydrogen is equal to 2.

n = 0

p = 1

e = 1

sum = 1 + 1 = 2