H _2 O is dipolar, whereas BeF _2 is not. It is because :-

NEET 2004 Chemistry question

is dipolar, whereas is not. It is because :-

(1) involves hydrogen bonding whereas is a discrete molecule
(2) is linear and is angular
(3) is angular and is linearCorrect
(4)The electronegativity of F is greater than that of O

Answer: (3)

Solution

Water has two bond pairs and two lone pairs on O (sp), so it is bent (angular, 104.5); the two O-H bond dipoles do not cancel, giving a net dipole moment. has two bond pairs and no lone pair on Be (sp),

See the full step-by-step solution

Create a free account to read the complete working, and practise questions like this in a timed test.

Create a free account

Question ID VK-089405