Which of the following statements are correct ?
(i) NaH (s) reacts violently with water to form `NaOH and H_(2)`
(ii) An example for electron rich hydride is `NH_(3)`
(iii) Nickel forms saline hydride

Options

A. (i),(iii)
B. (ii),(iii)
C. (i),(ii),(iii)
D. (i),(ii)

Answer

D

Explanation

(i) `NaH+H_(2)O underset(Delta) rarr NaOH + H_(2)`
(ii) `H- overset(H) overset(|)underset(H) underset(|)N:` electrons rich hydride due to presence of lone pair at N-atom
(i), (ii) both statements are correct.
(iii) Nickle cannot form saline hydride Thus, statement is incorrect.