Hydrogen And Its Compounds Question 57

Question: In which of the compounds does hydrogen have an oxidation state of -1

Options:

A) $ CH_4 $

B) $ NH_3 $

C) HCl

D) $ CaH_2 $

Show Answer

Answer:

Correct Answer: D

Solution:

$ \overset{+2}{\mathop{Ca}}\overset{x}{\mathop{H_2}} $ i.e., $ 2+2x=0 $ , $ x=-1 $

$ 2x=-2 $ or $ x=\frac{-2}{2}=-1 $