(A) 7(C) <7(D) 112. Change of Na,CO, 10 H,0 to Na,Co, H,0 on exposure – InterviewSolution

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1.	(A) 7(C) <7(D) 112. Change of Na,CO, 10 H,0 to Na,Co, H,0 on exposure to air is called(A) efflorescence (B) effervescence (C) fluorescence
Answer» it is called efflorescence that is when some water molecules is left behind in the compoundand some evaporate in contact with air

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