Fill in the blanks by choosing the appropriate word/words from those given in the bracket:
(vacant, square planar, tetrahedral, 64%, crystal, decreases, efficient, increases, 74%, `sp^(3)d^(2), sp^(3)`)
The unit of conductance is ............... and that of specific conductance is .............. (`ohm^(-1), ohm^(-1)cm^(-1)`)

Explanation

To solve the question, we need to fill in the blanks with the appropriate units for conductance and specific conductance based on the information provided.

### Step-by-Step Solution:

1. **Understanding Conductance**:
- Conductance (C) is defined as the ability of a material to conduct electric current. It is inversely related to resistance (R).
- The formula for conductance is given by:
\[
...