Question

Match List-I with List-II:

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

Hint:

Match each test with the nutrient it estimates—Bray for P, Kjeldahl for N, and flame photometry for K.

Answer 1

The Correct Option is D

Step 1: Kjeldahl method is exclusively for total nitrogen estimation.
Step 2: Bray P1 extraction is the standard test for available phosphorus.
Step 3: Ammonium acetate extracts exchangeable K, and flame photometry reads out K/Na concentration.
Step 4: The correct answer is \[ \boxed{\text{(A)-(III), (B)-(I), (C)-(IV), (D)-(II)}} \]