A.Ammonium salts produce haze in atmosphere.
B.Ozone gets produced when atmospheric oxygen reacts with chlorine radicals.
C.Polychlorinated biphenyls act as cleansing solvents.
D.'Bile baby' syndrome occurs due to the presence of excess of sulphate ions in water.
Choose the correct answer from the options given belows:

Options

A. `B` and `C` only ``
B. `A` and `C` only ``
C. `A` and `C` only ``
D. `A,B` and `C` only

Answer

To solve the question, we need to evaluate each statement one by one to determine which are correct.

### Step 1: Evaluate Statement A
**Statement A:** Ammonium salts produce haze in the atmosphere.
- **Analysis:** Ammonium salts can contribute to the formation of aerosols and particulate matter in the atmosphere, which can lead to haze. This statement is **true**.

### Step 2: Evaluate Statement B
**Statement B:** Ozone gets produced when atmospheric oxygen reacts with chlorine radicals.
- **Analysis:** Ozone (O3) is primarily formed through a reaction involving oxygen molecules (O2) and ultraviolet light, not directly from chlorine radicals. Chlorine can react with ozone, but it does not produce ozone. Therefore, this statement is **false**.

### Step 3: Evaluate Statement C
**Statement C:** Polychlorinated biphenyls act as cleansing solvents.
- **Analysis:** Polychlorinated biphenyls (PCBs) are indeed used as solvents and have been used in various industrial applications, including as cleaning agents. This statement is **true**.

### Step 4: Evaluate Statement D
**Statement D:** 'Bile baby' syndrome occurs due to the presence of excess of sulphate ions in water.
- **Analysis:** The correct term is "blue baby syndrome," which is caused by excessive nitrate ions in water, not sulfate ions. Therefore, this statement is **false**.

### Conclusion
From the evaluations:
- Statement A: True
- Statement B: False
- Statement C: True
- Statement D: False

The correct statements are A and C.

### Final Answer
The correct answer is **Option 2** (A and C are true).

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