Engineer & Medical

Exam 2024 Chemistry question bank (Chemistry)

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Q1.

In the following sequence of reactions, compound $M$ is:
$M$ $\xrightarrow{CH_3MgBr} N + CH_4 \uparrow$ $\xrightarrow{H^+} CH_3COCH_2COCH_3$

(A)
$CH_3COCH_2COCH_3$
(B)
$CH_3COCH_2CO_2Et$
(C)
$CH_3COCH_3$
(D)
$CH_3COOH$
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Q2.

The reaction sequence is as follows:
Benzene + $CH_3Cl$ $\xrightarrow{Anhy. AlCl_3} A$ $\xrightarrow[(2) H_3O^+, \Delta]{(1) CrO_3 / (CH_3CO)_2O, 273-283K} B$
The incorrect statement about '$B$' is:

(A)
It gives test with Tollens reagent
(B)
It gives test with Fehling's solution
(C)
It does not give test with $NaOH + I_2$ solution
(D)
It forms acid and alcohol with concentrated $NaOH$,followed by acidification
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