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How many grams of silver will be displaced from a solution of AgNO3 by 4 g of magnesium?

(a) 18 g

(b)  4 g

(c) 36 g

(d) 16 g

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Correct option (c) 36 g


Weight of magnesium = 4 g

We know that,  Weight of silver displaced (M)/Weight of magnesium

= Equivalent weight of silver/ Equivalent weight of magnesium

or M/4 = 108/12

or M = 108 x 4 /12 = 36 g

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