Covalent Bonding of N,O with H and Polarity

Q. How many electrons are shared between hydrogen and chlorine atoms during the formation of HCl molecule?

1. 2 electron pair
2. 3 electron pai
3. 4 electron pair
4. 1 electron pair

Q.

The total number of single bonds in a water molecule are:

1. 4

2. 2

3. 1

4. 3

Q. In $H_{2}O$ molecule, total number of single bonds are ___.