MCQ
Acetaldehyde reacts with $C{l_2}$ (in excess) to give
- ✓Chloral
- BChloroform
- CAcetic acid
- DTrichloroacetic acid
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$[Fe(CN)_6]^{4-} \rightarrow [Fe(CN)_6]^{3-} + e^{-1}\, ;$ $ E^o = -0.35\, V$
$Fe^{2+} \rightarrow Fe^{3+} + e^{-1}\ ;$ $E^o = -0.77\, V$
$Cr _2 O _7^{2-}+ XH ^{+}+6 Fe ^{2+} \rightarrow YCr ^{3+}+6 Fe ^{3+}+ ZH _2 O$
The sum of $X . Y$ and $Z$ is $.......$.
$\begin{array}{|l|l|} \hline Column\,\,I & Column\,\,II \\ \hline (A)\,XeF_6 & (i)\,\,distortedoctahedral \\ \hline (B)\,XeO_3 & (ii)\,\,square\,\,planar \\ \hline (C)\,XeOF_4 & (iii)\,\,pyramidal \\ \hline (D)\,XeF_4 & (iv)\,\,square\,\,pyramidal \\ \hline \end{array}$
$CH_3CHO + HCN \to CH_3CH(OH)CN \xrightarrow{H-OH} CH_3CH(OH)COOH$