MCQ
When ${H_2}S$ is passed through acidified $KMn{O_4},$ we get
- A${K_2}S{O_3}$
- B$Mn{O_2}$
- C$KHS{O_3}$
- ✓$Sulphur$
${K_2}S{O_4} + 2MnS{O_4} + 8{H_2}O + 5S$
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(Assume $100\%$ ionization)
$A.$ $0.500\,M\,C _2 H _5 OH ( aq )$ and $0.25\, M\, KBr ( aq )$
$B.$ $0.100\,M\,K _4\left[ Fe ( CN )_6\right]$ (aq) and $0.100\, M$ $FeSO _4\left( NH _4\right)_2 SO _4$ (aq)
$C.$ $0.05 \,M\, K _4\left[ Fe ( CN )_6\right]( aq )$ and $0.25\, M\, NaCl$ (aq)
$D.$ $0.15\, M\, NaCl ( aq )$ and $0.1\, M BaCl _2$ (aq)
$E.$ $0.02\, M\, KCl\, MgCl _{2 .} 6 H _2 O ( aq )$ and $0.05\, M$ $KCl ( aq )$
|
${List-I }$ ${(Reactants) }$ |
${List-II }$ ${ Products }$ |
| ($A$)Phenol, $\mathrm{Zn} / \Delta$ |
$(I)$ Salicylaldehyde |
| ($B$)Phenol, $\mathrm{CHCl}_3, \mathrm{NaOH}, \mathrm{HCl}$ |
$(II)$ Salicylic acid |
| ($C$)Phenol, $\mathrm{CO}_2, \mathrm{NaOH}, \mathrm{HCl}$ |
$(III)$ Benzene |
| ($D$)Phenol, Conc. $\mathrm{HNO}_3$ |
$(IV)$ Picric acid |