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Valency

Question 1 of 15

Element A has 2 electrons in its outermost shell and element B has 4 electrons in its outermost shell. The formula of the compound formed between A and B would be

  1. A2B3
  2. A4B2
  3. A2B
  4. A2B4
  5. -

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