Given below are two statements: Statement I: Dimethyl ether is completely soluble in water. However, diethyl ether is…
Alcohols, Phenols & Ethers · Class 12 · JEE Main Previous Year Question
Given below are two statements:
Statement I: Dimethyl ether is completely soluble in water. However, diethyl ether is soluble in water to a very small extent.
Statement II: Sodium metal can be used to dry diethyl ether and not ethyl alcohol.
In the light of given statements, choose the correct answer from the options given below:
- a
Statement I is false but Statement II are true
- b
Both Statement I and Statement II are false
- c
Statement I is true but Statement II is false
- d✓
Both Statement I and Statement II are true
Both Statement I and Statement II are true
Step 1: Evaluate Statement I
Dimethyl ether (): small molecule, can form H-bonds with water → completely miscible ✓
Diethyl ether (): larger alkyl groups reduce water solubility → sparingly soluble ✓
Statement I is TRUE.
Step 2: Evaluate Statement II
Sodium metal reacts with active hydrogen compounds:
(reacts with ethyl alcohol — cannot be used to dry it)
Diethyl ether has no active hydrogen → Na does not react with it → Na can be used to dry diethyl ether ✓
Statement II is TRUE.
Answer: (d) Both Statement I and Statement II are true
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