Question

Number of compounds from the following with zero dipole moment is _____.

\(HF, H_2, H_2 S, CO _2, NH_3, BF _3 , CH_4, CHCl_3, SiF_4, H_2O, BeF_2\)

Answer 1

Correct answer is : 6

\(H_2, CO_2, BF _3 ,CH_4, SiF_4 , Be F_2\) are symm. 

molecule so dipole moment is zero.