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1.

Match the following `{:(,"Column A",,,"Column B"),((A),CuSO_(4),(),(a),"Hygroscopic"),((B),Na_(2)CO_(3)*10H_(2)O,(),(b),"Deliquescent"),((C),"Concentrated" H_(2)SO_(4),(),(c),"Efflorescent"),((D),ZnC1_(2),(),(d),"Anhydrous salt"):}`A. `A rarr b, B rarr c, C rarr d, D rarr a`B. `A rarr d, B rarr c, C rarr a, D rarr b`C. `A rarr c, B rarr d, C rarr b, D rarr a`D. `A rarr c, B rarr d, C rarr a, D rarr b`

Answer» Correct Answer - B
A `rarr` d
`CuSO_(4`) is an example of anhydrous salt.
B `rarr` c
`Na_(2)CO_(3)*10H_(2)O` is an example of efflorescent substance.
C `rarr` a
Conc. `H_(2)SO_(4)` is an example of hygroscopic substance.
D `rarr` b
`ZnCI_(2)` is an example of deliquescent substance.
Discussion