Question

A sample of CaCO3 is 50% pure. On heating 1.12 L of CO2 (at STP) is obtained. Residue left (assuming non-volatile impurity) is: A)7.8g B) 3.8 g C)2.8g D) 8.9g

Answer 1

Explanation:

Hey mate Ur answer is

B) 2.8 gram

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