KVPY SA Exam 2012 Question Paper

Question : 71 of 80

Marks: +1, -0

CHEMISTRY

Upon fully dissolving 2.0 g of a metal in sulfuric acid, 6.8 g of the metal sulfate is formed. The equivalent weight of the metal is

Solution:

Equivalents of metal = Equivalents of metal sulphate

\text"wt.of meta"/\text" Eq.wt.of metal"

=\text" wt.of metalsulphate"/\text" Eq.wt.metalsulphate"

2/x=6.8/{x+48}

6.8x= 2x +96

x=96/4.8=20

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