Express the following in exponential form:
 
1. \(2 \times  2 \times 2 \times 2 =\) ii
 
2. \(x  \times x =\) ii
 
3. \(a \times a \times a \times a=\) ii
 
4. \(3 \times 3 \times 10 \times 10 \times 10 =\) ii×ii
 
5. \(3 \times 3 \times a \times a=\) ii×ii
 
6. \(a \times a \times a \times x \times x \times x \times x \times q =\) ii×ii×i