Q.

Which fumes in air?

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a

BeCl2

b

MgCl2

c

CaCl2

d

BaCl2

answer is A.

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Detailed Solution

BeCl2 reacts with moisture in air and gives fumes due to formation of HCI.BeCl2+2H2O⟶Be(OH)2+2HCl Fumes
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