1.

Choose the incorrect options (s) :

Answer»

`O_(2)F_(2)` and `OF_(2)` both have OPEN book structure.
Inorganic BENZENE and organic benzene both have all `sp^(2)` hybridised atoms.
Pure hydrogen is PREPARED action of DILL `H_(2)SO_(4)` on pure magnesium ribbon
`Cr_(2)(SO_(4))_(3) + H_(2)O_(2) + NaOh rarr Na_(2)Cr_(2)O_(7) + Na_(2)SO_(4) + H_(2)O`

Solution :(a)
(b)
(c) `{:(Mg,+,H_(2)SO_(4),rarr,MgSO_(4),+,H_(2),),("pure",,,,,,"pure",):}`
(D) `Cr_(2) (SO_(4))_(3) + NaOH + H_(2)O_(2) rarr Na_(2)CrO_(4) + 8H_(2)O + Na_(2)SO_(4)`


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