Previous year MCQs

General science UPPSC 2000 GS-I
Question

Match list-I with list-II and select the correct answer using the code given below the lists:
List-I (molecules) - List-II (elements present)

A. Vitamin B12 - 1. Magnesium
B. Haemoglobin - 2. Cobalt
C. Chlorophyll - 3. Copper
D. Brass - 4. Iron

Code:
A B C D

Answer & Solution

Answer: (Detailed Solution Below)

Option A: 2 4 1 3

Detailed Solution:

The correct answer is “2 4 1 3”.
Let's match the molecules (List-I) with the elements present in them (List-II):

A. Vitamin B12 - 2. Cobalt
B. Haemoglobin - 4. Iron
C. Chlorophyll - 1. Magnesium
D. Brass - 3. Copper

Brass is an alloy primarily composed of copper and zinc.

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