Q. In $\lbrack Ni\left( NH_{3} \right)_{4}\rbrack SO_{4},$ the valency and coordination number of Ni will be respectively

A) 3 and 6
B) 4 and 4
C) 4 and 2
D) 2 and 4
Explanation

(d)
$\left\lbrack Ni\left( NH_{3} \right)_{4} \right\rbrack SO_{4}$
$\ \ \ x\ \ \ \ \ 0\ \ \ \ \ \ - 2$
$x + 0 + ( - 2) = 0 \Rightarrow x = + 2\$is valency and 4 is C.N. of Ni

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.