Question

Answer the following questions :

Set I

1. Unpaired electron(s) in superoxide ion ..........

2. Potassium sesquioxide has actually .......... O atoms

3. When one mole of $N{a}_{2}C{O}_3$ is heated, $C{O}_2$ obtained is .......... mole.

4. Number of $HC{O}_3^{-}$ ions joined by H-bonding in $KHC{O}_3$ is ..........

5. When $LiN{O}_3$ is heated, change in oxidation number of N is ..........

6. When $NaN{O}_3$ is heated, change in oxidation number of N is ..........

7. Number of s-electrons in $N{a}^{-}$ is ..........

8. A number of elements in the second period showing the diagonal relationship is ..........

Answer 1

1. Unpaired electron(s) in superoxide ion $=1$.
2. Potassium sesquoxide has actually $3$ O atoms
3. When one mole of $N{a}_{2}C{O}_3$ is heated, $C{O}_2$ obtained is $1$ mole.
4. Number of $HC{O}_3^{-}$ ions joined by H-bonding in $KHC{O}_3$ is $2$
5. When $LiN{O}_3$ is heated, change in oxidation number of N is $-1$.
6. When $NaN{O}_3$ is heated, change in oxidation number of N is $-2$.
7. Number of s-electrons in $N{a}^{-}$ is $6$.
8. Number of elements in second period showing diagonal relationship is $3$.