Chemistry MCQs

Page No. 42

Which of the following reagents will react with both aldehydes and ketones ?


aGrignard reagent


bTollens reagent


cFehlings reagent


dBenedicts reagent


View Answer Grignard reagent

Which of the following reactions may be assoclated with aldehyde and ketone ?


anucleophile addition


bpolymerization


coxidation


dAll of the above


View Answer All of the above

Acetone reacts with HCN to form a cyanohydrin. It is an example of________________?


aelectronphilic addition


belectrophilic substitution


cnucleophilic addition


dnucleophilic substitution


View Answer nucleophilic addition

Formalin is ___________ solution of formaldehyde in water?


a10%


b20%


c40%


d60%


View Answer 40%

The carbon atom of carbonyl group is__________________?


asp hybridized


bsp2 hybridized


csp3 hybridized


ddsp2 hybridized


View Answer sp2 hybridized

Which of the following will have the highest boiling point ?


amethanol


bethanal


cpropanal


dhexanone


View Answer hexanone

Iodoform test can be used to distinguish between_________________?


aethanol and methanol


bacetaldehyde and methanal


cacetone and diethyl ketone


dall of the above


View Answer all of the above

Cannizaros reaction takes place through the transfer of ____________________ from complex anion?


ahydrogen ion


bhydride ion


coxide ion


dmethoxide ion


View Answer hydride ion

Dry distillation of calcium acetate results in the formation of_________________?


aformaldehyde


bacetaldehyde


cmethane


dacetone


View Answer acetone

Tetrahydroborate ion is the source of_______________?


aproton


bH+


cBoth A and B


dH-


View Answer H-

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