Bond angle is maximum in NH4+ tetrahedral molecule with bond angle 109°.
2
AIPMT 2001
MCQ (Single Correct Answer)
In X - H --- Y, X and Y both are electronegative elements. Then
A
electron density on X will increase and on H will decrease
B
in both electron density will increase
C
in both electron density will decrease
D
on X electron density will decrease and on H increases.
Explanation
As X and Y both are electronegative elements thus both attracts the electron density from H thus, electron density on H decreases and on X it increases.
3
AIPMT 2001
MCQ (Single Correct Answer)
Which of the following two are isostructural?
A
XeF2, IF2$$-$$
B
NH3, BF3
C
CO32$$-$$, SO32$$-$$
D
PCl5, ICl5
Explanation
Compounds with same shape and same hybridisation are known as isostructural.
XeF2, IF2- $$ \to $$ both are sp3 hybridised linear molecules.