Question # 1

Which one has yellow or orange cyrstalline ppt

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Acetone hydrazone

2, 4 DNPH

Ethanal oxime

Bisulphite addition product

Silver mirror test is given by

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Ethers

Ketones

Acids

Aldehydes

Acetaldehyde react, with Grignard reagent to form

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Primary alcohol

Secondary alcohol

Ter alcohol

Carboxylic acids

Oxime is an addition product obtained when aldehydes react with.

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HCN

NH2OH

Phenyl hydrazine

H2O

Ketones are prepared by the oxidation of.

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Primary alcohol

Secondary alcohol

Tertiary alcohol

None of these

Structure of carbonyl is

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Tetrahedral

Linear

Octahederal

Trigonal planar

Which substance usually undergo nucleophilic addition reactions.

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Benzenes

Aldehydes

Alkenes

All of these

Formalin is

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10% solution of formaldehyde in water

20% solution of formaldehyde in water

40% solution of formaldehyde in water

60% solution of formaldehyde in water

Paraldehyde is polymer of.

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HCHO

CH3CHO

CH3COCH3

CH3CH2-CH2OH

Which can produce ketone

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Sec alcohol

Calcium acetate

Propyne

All of these

Which one of the following compound does not react with NaOH and I2 and also does not form Iodoform.

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C2H5OH

CH3CHO

CH3-CO-CH3

C2H5-O-C2H5

Formalin is a 40% solution of

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CH₃CHO

CH₃OH

HCHO

CH₃OCH

An aldehyde compound can be reduced to alkane by

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Wurtz reaction

Grignard reaction

Wolf Kishner reaction

Kolbe's reaction

Acetone reacts with HCN to form cyanohydrin it is an example of

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Electrophilic addition

Electrophilic substitution

Nucleophilic addition

Nucleophilic subtitution

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

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Electrophilic addition

Electrophilic substitution

Nucleophilic addition

Nucleophilic substitution

Paraldehyde is used as a

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Medicine

Poison

Polymer

Dye

Which is most difficult to be oxidized

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CH₃CHO

CH₃COCH₃

HCHO

C₂H₅CHO

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Chemistry Fsc Part 2 Chapter 12 Online Test MCQs With Answers

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