Which of the following set contains species having same angle around the central atom?

CHEMISTRY · Single correct · A Level · Chemistry · Bonding · Bonding

Problem

Which of the following set contains species having same angle around the central atom? (1)

\text{SF}_4, \text{CH}_4, \text{NH}_3

(2)

\text{NF}_3, \text{BCl}_3, \text{NH}_3

(3)

\text{BF}_3, \text{NF}_3, \text{AlCl}_3

(4)

\text{BF}_3, \text{BCl}_3, \text{BBr}_3