Millionaire Mode

Atoms and molecules - class-X

Question 1 of 23

Which of the following molecules specie has the minimum number of lone pairs ? 

  1. $ X _eF _4 $
  2. $ BF^- _4 $
  3. $ ICI _3 $
  4. $ BeF _2 $

Prize Money

15₹7 Crores
14₹1 Crore
13₹50,00,000
12₹25,00,000
11₹12,50,000
10₹6,40,000
9₹3,20,000
8₹1,60,000
7₹80,000
6₹40,000
5₹20,000
4₹10,000
3₹5,000
2₹2,000
1₹1,000