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1.

Acetoisonitrile on reaction with `C_2 H_5 MgBr` followed by hydrolysis, gives compound `(A)`, which one further hydrolysis gives `(B)` and `( C)`. `(B)` and `( C)` are :A. `MeNH_2` and `EtCHO`B. `EtNH_2` and `MeCHO`C. `MeNH_2` and `EtCOOH`D. `EtNH_2` and `MeCOOH`

Answer» Correct Answer - A
Discussion
2.

The coupling between`C_2 H_5 MgBr` and `MeBr` gives propane in the presence of :A. `MeOTs`B. `EtOTs`C. `AgBr`D. `CuCl_2`

Answer» Correct Answer - A::B::D
Discussion
3.

Reactivity of `PrMgBr` with the following in the decreasing order is : (i) Alcohol (ii) Aldehyde (iii) Ketone (iv) Ester.A. `(iv) gt (iii) gt (ii) gt (i)`B. `(i) gt (ii) gt (iii) gt (iv)`C. `(ii) gt (iii) gt (i) gt (iv)`D. `(iv) gt (i) gt (iii) gt (ii)`

Answer» Correct Answer - B
Discussion
4.

Which of the statements is/are correct ?A. In Reformatsky reaction, `alpha-bromo` ester reacts with aldehyde or ketone in the presence of `Mg` to give `beta-hydroxy` ester.B. In Reformatsky reaction, `alpha-bromo` ester reacts with aldehyde or ketone in the presence of `Zn` to give `beta-hydroxy` ester.C. Citric acid is prepared by the reaction of `alpha-bromoethyl` acetate and ethyl oxaloacetate in the presence of `Zn` followed by hydrolysis.D. Citric acid is prepared by the fermentation of molasses in the presence of Aspergillus wentienzymes.

Answer» Correct Answer - B::C::D
Discussion