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Question

Ca2B6O11+Na2CO3Fused−−(A)+(B)+CaCO3(A)+CO2(B)+Na2CO3Solution(B)+Conc.HCINaCI+Acid H2O(C)Strongly−−−−heated (D) Acid(C)(D)+CuSO4Heated−−−−inflameBlue coloured(E) compoundcompound (E) is -


A

Cu2O

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B

CuS

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C

CuSO3

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D

Cu(BO2)2

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