pBlock ElementsII - Result Question 80
75. Identify the compounds $A, B, C, D$
$Na _2 CO _3 \xrightarrow{SO _2} A \xrightarrow{Na _2 CO _3} B \xrightarrow[\Delta]{\text { Elemental S} } C \xrightarrow{I _2} D$
and give oxidation state of sulphur in each compounds.
(2003,4 M)
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Solution:
- $A=\stackrel{+4}{NaH S O _3 };$
$ B=\stackrel{+4}{Na _2 S O _3 }; $
$C={Na _2} \stackrel{+2}{S _2 O _3} ;$
$ D={Na 2} \stackrel{+2.5} {S{4} O _6}$
BETA
