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Question

(i) A+Na2CO3B+C

(ii) ACO2(Milky) C
The chemical formula Aand B are respectively.

A
NaOH and Ca(OH)2
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B
Ca(OH)2 and NaOH
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C
NaOH and CaO
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D
CaO and Ca(OH)2
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Solution

The correct option is B Ca(OH)2 and NaOH
Complete reaction is,
i) Ca(OH)2+Na2CO3NaOH+CaCO3
A (B) calcium carbonate (C)
ii) Ca(OH)2+CO2CaCO3(C)
A (milky)
calcium hydroxide calcium carbonate.
Hence, option B is correct.

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