1.

Solid A overset("on")underset("heating")rarr anhydrous A A on strong heating produces compound(s) has/have:

Answer»

chain structure
tetrahedral structure
both (a) and (B)
none of the above

Solution :`Na_(2)S_(2)O_(3)` is the only thiosulphate which is hydrated.
`{:(Na_(2)S_(2)O_(3).5H_(2)O OVERSET(Delta)rarr,Na_(2)S_(2)O_(3)+5H_(2)O),(,""darrDelta),(,Na_(2)SO_(4)+Na_(2)S_(5)):} `
`Na_(2)SO_(4): Na^(+) .^(-)O-overset(O)overset(||)underset(O)underset(||)(S)-O^(-)Na^(+)`,

`S_(2)O_(3)^(2-) + CN^(-) rarr SCN^(-) +SO_(3)^(2-)`
`Fe^(3+) +3SCN^(-) rarr Fe(SCN)_(3)`


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