Chemistry-Percentage Composition

NEET Chemistry Percentage Composition MCQ Question

Type: MCQ-numerical-Medium-Class 11

Calculate the percentage composition of copper in copper sulfate (CuSO4). (Atomic masses: Cu = 63.5, S = 32.1, O = 16.0)

A

39.81%

B

31.83%

C

45.11%

D

25.47%

Correct Answer

Option A

Detailed Explanation

To find the percentage composition of copper in CuSO4, calculate the molar mass of CuSO4 (63.5 + 32.1 + 4 * 16.0 = 159.6 g/mol) and then determine the percentage of copper: (63.5 / 159.6) * 100 ≈ 39.81%.

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