Question

Match List-I with List-II. 

• A. A-IV, B-I, C-II, D-III
• B. A-III, B-IV, C-II, D-I
• C. A-IV, B-III, C-II, D-I
• D. A-III, B-IV, C-I, D-II

Hint:

Tollen's test is the easiest to remember: Aldehydes make mirrors!

Answer 1

The Correct Option is A

The given question is about matching functional group detection tests with the changes observed during these tests. Let's analyze each option step by step.

1. Unsaturation (Baeyer’s test): This test is used to detect alkenes and alkynes. In this test, a purple color of potassium permanganate solution is discharged, indicating the presence of unsaturation. Hence, it matches with IV. Discharge of pink colour.
2. Alcoholic group (Ceric ammonium nitrate test): In this test, the presence of alcohol can cause a red color to appear when ceric ammonium nitrate is added. Thus, it matches with I. Red colour appears.
3. Aldehyde group (Tollen’s reagent): Aldehydes react with Tollen’s reagent to form a silver mirror on the test tube. This corresponds to II. Silver mirror appears.
4. Phenolic group (FeCl₃ test): Phenols react with iron(III) chloride to produce a violet color. Thus, it matches with III. Violet colour appears.

Now, matching the observations with the tests, we get:

• A - IV
• B - I
• C - II
• D - III

Therefore, the correct answer is: A-IV, B-I, C-II, D-III.