Find out no of compounds that gives positive iodoform test (either in cold or hot condition)
(A) `H_(3)C-underset(O)underset(||)(C)-CH_(2)-CH_(3)`
(B) `I_(3)C-underset(O)underset(||)(C)-CH_(2)-CH_(3)`
(C) `CH_(3)-underset(OH)underset(|)(C)-CH_(2)CH_(3)`
(D) `CH_(2) l -underset(OH)underset(|)(CH)-CH_(2)CH_(3)`
(E) `CH_(3)CH_(2)OH`

Explanation

To determine the number of compounds that give a positive iodoform test, we need to analyze each compound based on the criteria for the iodoform test. The iodoform test is positive for compounds that have a methyl ketone group (RCOCH3) or a secondary alcohol that can be oxidized to a methyl ketone.

### Step-by-Step Solution:

1. **Analyze Compound A: `H₃C-(O=)(C)-CH₂-CH₃`**
- This is a ketone (specifically, a methyl ketone).
- It has 3 alpha hydrogens (from the CH₃ group).
- **Conclusion**: This compound gives a positive iodoform test.

2. **Analyze Compound B: `I₃C-(O=)(C)-CH₂-CH₃`**
- This is also a ketone, but it has three iodine atoms attached to the methyl group.
- It can still undergo the iodoform reaction since it can be cleaved to form iodoform (CHI₃).
- **Conclusion**: This compound gives a positive iodoform test.

3. **Analyze Compound C: `CH₃-(OH)-(C)-CH₂-CH₃`**
- This is a secondary alcohol.
- Upon oxidation, it can be converted to a methyl ketone (specifically, to a ketone with 3 alpha hydrogens).
- **Conclusion**: This compound gives a positive iodoform test.

4. **Analyze Compound D: `CH₂Cl-(OH)-(C)-CH₂-CH₃`**
- This is also a secondary alcohol, but it has only 2 alpha hydrogens (the CH₂ group).
- It cannot be oxidized to form a methyl ketone.
- **Conclusion**: This compound does NOT give a positive iodoform test.

5. **Analyze Compound E: `CH₃CH₂OH`**
- This is a primary alcohol.
- Upon oxidation, it can be converted to acetaldehyde (which has 3 alpha hydrogens).
- **Conclusion**: This compound gives a positive iodoform test.

### Final Count of Compounds:
- Positive iodoform test: A, B, C, E
- Negative iodoform test: D

Thus, the total number of compounds that give a positive iodoform test is **4** (A, B, C, and E).

### Summary of Results:
- **Compounds giving a positive iodoform test**: A, B, C, E
- **Total**: 4 compounds