Q. Hydrogen directly combines with
A) Cu
B) Au
C) Ca
D) Ni
Explanation
(c)
$H_{2}$ does not react with $Au,\ Cu\ or\ Ni.$ with Ca, it gives ${CaH}_{2}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.