Match column I(compound) with column II (uses) Column I Column IIACaCO3IIn ornamental workBNaHCO3IIlaboratory reagentCCaSO4.2H2OIIIantacidDNaOHIVas a basic flux in metallurgy

Column I Column IIACaCO3IVas a basic flux in metallurgyBNaHCO3IIIantacidCCaSO4.2H2OIIn ornamental workDNaOHIIlaboratory reagent

Column I Column IIACaCO3IVas a basic flux in metallurgyBNaHCO3IIIantacidCCaSO4.2H2OIIn ornamental workDNaOHIIlaboratory reagent

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Match column I(compound) with column II (uses)
Column I Column II
A CaCO₃ I In ornamental work
B NaHCO₃ II laboratory reagent
C CaSO₄.2H₂O III antacid
D NaOH IV as a basic flux in metallurgy

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A	B	C	D
III	III	I	IV

A	B	C	D
IV	III	I	II

A	B	C	D
III	IV	I	II

A	B	C	D
IV	II	III	I

answer is A.

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