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Light green (Compound 'A') overset(Delta...

Light green (Compound 'A') `overset(Delta)(rarr)White Residue '(B)' `underset("Temp")overset("High")(rarr)C+D+E`
`i)` 'D' and 'E' are two acidic gases.
ii) 'D' is passed through `HgCl_(2)` solution to give yellow pt.
`iii)` 'E' is passed through water first and then `H_(2)S` is passed, white turbidity is obtained.
`iv)` A is water soluble and addition of `HgCl_(2)` in it, white ppt is obtained but white ppt does not turn into grey on addition of excess solution of 'A'.
'D' and 'E' are respectively

A

`SO_(2)` and `SO_(3)`

B

`SO_(3)` and `SO_(2)`

C

`SO_(2)` and `CO_(2)` and conc. `CH_(3)COOH`

D

`CO_(2)` and `CO` Boiled conc. HCl

Text Solution

Verified by Experts

The correct Answer is:
B
`FeSO_(4).7H_(2)Ooverset(Delta)(rarr)underset((B))(FeSO_(4))+7H_(2)O`
`underset((B))(2FeSO_(4))overset(Delta)(rarr)2FeO+SO_(2)+SO_(3)`
`underset(A)(2KMnO_(4))overset(Delta)(rarr)underset(B)(K_(2)MnO_(4))+underset(C)(MnO_(2))+underset(D)(O_(2))`
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