Difficult
In column - $I$ reaction name,in column - $II$ reactant and in column - $III$ product are given,match column - $I$ with column - $II$ and column - $III$ with the correct option.
Column - $I$ and $II$ Column - $III$ $(A).$ Rosenmund reaction - $(i).$ $H_2, Pd, BaSO_4$ $(p).$ Benzene to benzaldehyde $(B).$ Stephen reaction - $(iii).$ $SnCl_2, HCl$ $(q).$ Benzoyl chloride to benzaldehyde $(C).$ Etard reaction - $(iv).$ $CrO_2Cl_2, CS_2$ $(r).$ Toluene to chromium complex $(D).$ Gatterman-Koch reaction - $(ii).$ $CO, HCl$ anhydrous $AlCl_3/CuCl$ $(s).$ $RCN \to RCHO$
| Column - $I$ and $II$ | Column - $III$ |
|---|---|
| $(A).$ Rosenmund reaction - $(i).$ $H_2, Pd, BaSO_4$ | $(p).$ Benzene to benzaldehyde |
| $(B).$ Stephen reaction - $(iii).$ $SnCl_2, HCl$ | $(q).$ Benzoyl chloride to benzaldehyde |
| $(C).$ Etard reaction - $(iv).$ $CrO_2Cl_2, CS_2$ | $(r).$ Toluene to chromium complex |
| $(D).$ Gatterman-Koch reaction - $(ii).$ $CO, HCl$ anhydrous $AlCl_3/CuCl$ | $(s).$ $RCN \to RCHO$ |
(A) The correct matching is as follows:
$(A).$ Rosenmund reaction uses $H_2, Pd, BaSO_4$ to convert Benzoyl chloride to benzaldehyde. So,$(A \to i \to q)$.
$(B).$ Stephen reaction uses $SnCl_2, HCl$ to convert $RCN$ to $RCHO$. So,$(B \to iii \to s)$.
$(C).$ Etard reaction uses $CrO_2Cl_2, CS_2$ to convert Toluene to a chromium complex. So,$(C \to iv \to r)$.
$(D).$ Gatterman-Koch reaction uses $CO, HCl$ with anhydrous $AlCl_3/CuCl$ to convert Benzene to benzaldehyde. So,$(D \to ii \to p)$.
$(A).$ Rosenmund reaction uses $H_2, Pd, BaSO_4$ to convert Benzoyl chloride to benzaldehyde. So,$(A \to i \to q)$.
$(B).$ Stephen reaction uses $SnCl_2, HCl$ to convert $RCN$ to $RCHO$. So,$(B \to iii \to s)$.
$(C).$ Etard reaction uses $CrO_2Cl_2, CS_2$ to convert Toluene to a chromium complex. So,$(C \to iv \to r)$.
$(D).$ Gatterman-Koch reaction uses $CO, HCl$ with anhydrous $AlCl_3/CuCl$ to convert Benzene to benzaldehyde. So,$(D \to ii \to p)$.
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View SolutionThe correct match between Item-$I$ (starting material) and Item-$II$ (reagent) for the preparation of benzaldehyde is :
Item-$I$ Item-$II$ $I$. Benzene $P$. $HCl$ and $SnCl_2, H_3O^{+}$ $II$. Benzonitrile $Q$. $H_2, Pd-BaSO_4, S$ and quinoline $III$. Benzoyl Chloride $R$. $CO, HCl$ and $AlCl_3$
| Item-$I$ | Item-$II$ |
| $I$. Benzene | $P$. $HCl$ and $SnCl_2, H_3O^{+}$ |
| $II$. Benzonitrile | $Q$. $H_2, Pd-BaSO_4, S$ and quinoline |
| $III$. Benzoyl Chloride | $R$. $CO, HCl$ and $AlCl_3$ |
DifficultJEE MAIN 2020
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