The total number of compounds that will give two types of acid on hydrolysis is 2. Let's analyze each compound and determine whether it fits the criteria.

1. BCl3:
- BCl3 is a Lewis acid, meaning it can accept an electron pair.
- When BCl3 reacts with water (H2O), it forms HCl (hydrochloric acid) and H3BO3 (boric acid).
- Therefore, BCl3 meets the criteria as it produces two types of acid on hydrolysis.

2. NCl3:
- NCl3 is a covalent compound and does not readily hydrolyze.
- It can react with water, but it does not form two different types of acids.
- Therefore, NCl3 does not meet the criteria.

3. CCl4:
- CCl4 is a covalent compound and does not hydrolyze under normal conditions.
- It does not react with water to form any acids.
- Therefore, CCl4 does not meet the criteria.

4. CF4:
- CF4 is a covalent compound and does not hydrolyze.
- It does not react with water to form any acids.
- Therefore, CF4 does not meet the criteria.

5. SiCl4:
- SiCl4 is a Lewis acid, meaning it can accept an electron pair.
- When SiCl4 reacts with water, it forms HCl (hydrochloric acid) and H4SiO4 (silicic acid).
- Therefore, SiCl4 meets the criteria as it produces two types of acid on hydrolysis.

6. XeF6:
- XeF6 is a Lewis acid and a strong fluorinating agent.
- When XeF6 reacts with water, it forms HF (hydrofluoric acid) and H2XeO6 (perxenic acid).
- Therefore, XeF6 meets the criteria as it produces two types of acid on hydrolysis.

7. PCl3:
- PCl3 is a Lewis acid, meaning it can accept an electron pair.
- When PCl3 reacts with water, it forms HCl (hydrochloric acid) and H3PO3 (phosphorous acid).
- Therefore, PCl3 meets the criteria as it produces two types of acid on hydrolysis.

8. PCl5:
- PCl5 is a Lewis acid and a strong chlorinating agent.
- When PCl5 reacts with water, it forms HCl (hydrochloric acid) and H3PO4 (phosphoric acid).
- Therefore, PCl5 meets the criteria as it produces two types of acid on hydrolysis.

In summary, out of the given compounds, BCl3, SiCl4, XeF6, PCl3, and PCl5 meet the criteria of producing two types of acid on hydrolysis. Hence, the correct answer is '2'.