Q.

Black ash is a mixture of

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a

Na2S + CaCO3

b

CaS+ Na2CO3

c

CaCl2 + Na2CO3

d

Na2CO3 + K2CO3

answer is B.

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Detailed Solution

Black ash is a mixture of  CaS+ Na2CO3
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Get ₹ 1 crore* worth scholarship for JEE / NEET / Foundation
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