Question

Which of the following is soluble in water?

• A. CH$_3$OH
• B. CHCl$_3$
• C. CCl$_4$
• D. CS$_2$

Hint:

Small alcohols (like methanol, ethanol) are soluble in water due to hydrogen bonding, unlike non-polar halogenated compounds.

Answer 1

The Correct Option is A

Step 1: Solubility rule.
Polar compounds with hydrogen bonding are highly soluble in water. Non-polar compounds are insoluble.
Step 2: Analyze options.
(A) CH$_3$OH: Polar, forms H-bonds → soluble.
(B) CHCl$_3$: Weak polarity, limited solubility.
(C) CCl$_4$: Non-polar, insoluble.
(D) CS$_2$: Non-polar, insoluble.
Step 3: Conclusion.
The correct answer is (A) CH$_3$OH.