MCQ
has correct $IUPAC$ name


- A$3 -$ Methyl hexanal
- ✓$2 -$ Methyl hexanal
- CHexane $-1 -$ Carbaldehyde
- DHexane $-2 -$ Carbaldehyde

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$Ni ( s )+2 Ag ^{+}(0.001 M ) \rightarrow Ni ^{2+}(0.001 M )+2 Ag ( s )$
$($ Given that $E _{\text {cell }}^{\circ}=10.5 \,V , \frac{2.303 RT }{ F }=0.059$ at $298\, K )$
(Rounded off to the nearest integer)
| Column$-I$ | Column$-II$ |
| $(a)$ $\mathrm{XeF}_{4}$ | $(i)$ pyramidal |
| $(b)$ $\mathrm{XeF}_{6} $ | $(ii)$ square planar |
| $(c)$ $\mathrm{XeOF}_{4}$ | $(iii)$ distorted octahedral |
| $(d)$ $\mathrm{XeO}_{3} $ | $(iv)$ square pyramidal |
code : $(a) \quad (b)\quad (c) \quad (d)$

Statement $(I)$ : $A$ Buffer solution is the mixture of a salt and an acid or a base mixed in any particular quantities.
Statement $(II)$ : Blood is naturally occurring buffer solution whose $\mathrm{pH}$ is maintained by $\mathrm{H}_2 \mathrm{CO}_3 / \mathrm{HCO}_3$ concentrations.
In the light of the above statements, choose the correct answer from the options given below.