1.

Which of the following is correct statement ? (a) AlCl_(3) is conducting in fused state (b) Mobility of Li^(+) ion in water is greater than Cs^(+) ion (c ) MCl_(2) is more volatile than MCl_(4) (d) BeSO_(4) is more soluble in water than BaSO_(4)

Answer»

a, b
b, c, d
b, d
Only d

Solution :(a) `AlCl_(3)`is non conducting in fused state,
conducting only in aq. state.
(b) `Li^(+)(aq) GT Cs^(+)(aq)` - size
`Li^(+) (aq) ltCs^(+) (aq)` - mobility
`:.` mobility `PROP (1)/("size")`
(c ) COVALENT CHARACTER `(uarr) =` volatile properties `(uarr)`
`overset(+2)MCl_(2) lt overset(+4)MCl_(4)to`covalent character because size of M in `MCl_(4)` lesser than `MCl_(2)`
(d) `BeSO_(4) gt BaSO_(4)` - solubility


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