Number of positively charged sols amont the following is `Al_(2)O_(3).xH_(2)O,CrO_(3).xH_(2)O,As_(2)S_(3),CdS,` starch, `TiO_(2)`, Haemoglobin, `Fe_(2)O_(3).xH_(2)O,` Gold eosin

Explanation

To determine the number of positively charged sols among the given substances, we will analyze each compound based on its chemical nature and the charge it typically carries in colloidal form.

### Step-by-Step Solution:

1. **Identify the Compounds**: The compounds given are:
- Al₂O₃·xH₂O
- CrO₃·xH₂O
- As₂S₃
- CdS
- Starch
- TiO₂
- Hemoglobin
- Fe₂O₃·xH₂O
- Gold eosin

2. **Classify Each Compound**:
- **Al₂O₃·xH₂O**: This is aluminum oxide, which can form positively charged sols.
- **CrO₃·xH₂O**: Chromium oxide, which also tends to form positively charged sols.
- **As₂S₃**: Arsenic sulfide, which is a negatively charged sol.
- **CdS**: Cadmium sulfide, which is also a negatively charged sol.
- **Starch**: Starch can form a positively charged sol under certain conditions.
- **TiO₂**: Titanium dioxide typically forms positively charged sols.
- **Hemoglobin**: This is a protein that carries a positive charge in colloidal form.
- **Fe₂O₃·xH₂O**: Iron oxide, which can form positively charged sols.
- **Gold eosin**: This is a dye that can be negatively charged.

3. **Count the Positively Charged Sols**:
- From the analysis:
- Al₂O₃·xH₂O (Positive)
- CrO₃·xH₂O (Positive)
- Starch (Positive)
- TiO₂ (Positive)
- Hemoglobin (Positive)
- Fe₂O₃·xH₂O (Positive)

- The negatively charged sols are:
- As₂S₃ (Negative)
- CdS (Negative)
- Gold eosin (Negative)

4. **Total Count of Positively Charged Sols**:
- The positively charged sols identified are:
1. Al₂O₃·xH₂O
2. CrO₃·xH₂O
3. Starch
4. TiO₂
5. Hemoglobin
6. Fe₂O₃·xH₂O

- Therefore, the total number of positively charged sols is **6**.

### Final Answer:
The number of positively charged sols among the given substances is **6**.