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Mixture of two bivalent metals A and B having mass 2 g when dissolved in HCI at STP, 2.24 H2 is

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Mixture of two bivalent metals A and B having mass 2 g when dissolved in HCI at STP, 2.24 H2 is evolved. What is the mass of A present in mixture? (Atomic mass of A = 15 u,.4= 30 u)

(a) 1 g

(b) 1.5 g

(c) 0.5 g

(d) 0.75 g

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Correct option  (a) 1 g

Explanation:

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