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- Engineering
- Zinc sulphate contains 22.65% Zn and 43.9% H2O . If the law of constant proportion is true, then the mass of zinc required to given 40 g
Of crystal will be
1) 90.6gm 2) 9.06gm
3) 0.906gm 4) 906gm
Answers (1)
100g of crystals are obtained from =22.65g of Zn
∴∴ 20g of crystals are obtained from =(22.65/100)×40
⇒9.06g
Hence (b) is the correct option.
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