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The percentage weight of Zn in white vitriol [ZnSO₄ 7H₂O] is approximately equal to Zn=65, S=32, O=16 and H=1)
Options
(a) 33.65%
(b) 32.56%
(c) 23.65%
(d) 22.65%
Correct Answer:
22.65%
Explanation:
Mol. Wt of ZnSO₄ 7H₂O = 65 + 32 + (4 x 16) + 7 (2 x 1 +16)=287
% Mass of Zinc = 65/287 x 100 = 22.65%
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The compound that gives both iodoform and Fehling’s tests is
- The correct order of the decreasing ionic radii among the following isoelectronic
- In the final answer of the expression (29.2 – 20.2) (1.79 x 10⁵) / 1.37. The number
- Dumas method involves the determination of nitrogen content in the organic
- 0.765 gm of acid gives 0.55 g of CO₂ and 0.12 g of H₂O.Then find the ratio
Question Type: Memory (964)
Difficulty Level: Easy (1008)
Topics: Basic Concepts of Chemistry (94)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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