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p -Block elements - ll — Chemistry STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceChemistryp -Block elements - ll1 Mark
MCQ
Which of the following reaction is incorrect ?
  • A
    $HNO_3 \xrightarrow{\Delta } H_2O + NO_2 + O_2$
  • B
    $Pb(NO_3)_2 \xrightarrow{\Delta } PbO_2 + NO_2 + O_2$
  • ✓
    $MgCl_2.6H_2O \xrightarrow{\Delta } MgO + H_2O$
  • D
    $Fe_2(SO_4)_3 \xrightarrow{\Delta } Fe_2O_3 + SO_3$
✓

Answer

Correct option: C.
$MgCl_2.6H_2O \xrightarrow{\Delta } MgO + H_2O$
c
The structural formula of sulphur dioxide is $\mathrm{SO}_{2}$, and its a covalent planar molecule which is $\mathrm{V}-$ shaped with an angle of $120^{\circ}$.

Sulphur dioxide as oxidising agent: (Hydrogen sulphide) Claus Process : $\mathrm{SO}_{2}+2 \mathrm{H}_{2} \mathrm{S} \longrightarrow 3 \mathrm{S}+2 \mathrm{H}_{2} \mathrm{O}$

sulphur dioxide elemental sulphur water Sulphur dioxide as reducing agent: :

$\mathrm{SO}_{2}+\mathrm{Cl}_{2} \longrightarrow \mathrm{SO}_{2} \mathrm{Cl}_{2}$

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