Match the following:
List-I (Metal in drinking water) List-II (Maximum prescribed concentration in ppm) A) Mn I) \( 0.05 \) B) Zn II) \( 3.0 \) C) Cd III) \( 0.005 \) D) Cu IV) \( 5.0 \)
Match the following:
| List-I (Metal in drinking water) | List-II (Maximum prescribed concentration in ppm) |
|---|---|
| A) Mn | I) \( 0.05 \) |
| B) Zn | II) \( 3.0 \) |
| C) Cd | III) \( 0.005 \) |
| D) Cu | IV) \( 5.0 \) |
Show Hint
- A-IV, B-II, C-I, D-III
- A-I, B-III, C-IV, D-II
- A-III, B-II, C-IV, D-I
- A-I, B-IV, C-III, D-II
The Correct Option is D
Solution and Explanation
Step 1: Recall the safe ppm limits for each metal in drinking water.
Manganese (Mn): Maximum permissible limit is 0.05 ppm
Zinc (Zn): Maximum permissible limit is 5.0 ppm
Cadmium (Cd): Maximum permissible limit is 0.005 ppm
Copper (Cu): Maximum permissible limit is 3.0 ppm
Step 2: Matching List-I with List-II
A) Mn → \( I \) (0.05)
B) Zn → \( IV \) (5.0)
C) Cd → \( III \) (0.005)
D) Cu → \( II \) (3.0)
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