Question

Very short answer type questions
1. Which one is polar: H2 or H2O
2. What is the valency of aluminium and nitrate in Al (NO3)3?
3. How many electron pairs are shared by an oxygen molecule?
The valency of fluorine is 1. What is its valence electron?
5 Which bond should be more stronger: C-C or C=C? Why?​

Answer 1

Answer:

1. H2O

2. three valence

3. one pair

4. [He] 2s2 2p5

5. If there is double bond it has short length and it will be more strong. So C=C is more stronger than C-C.