General
✓✗Which acid is obtained when 1-bromopropane is converted into the Grignard reagent and then treated with CO2 followed by H3O+?
- Butanoic acid
- 2-Methylpropanoic acid
- Propanoic acid
- Pentanoic acid
General
✓✗Carboxylic acids have higher boiling points than aldehydes, ketones and even alcohols of comparable molecular mass. It is due to
- formation of the carboxylate ion
- formation of intramolecular H-bonding
- more extensive association via van der Waals forces
- extensive intermolecular H-bonding
General
✓✗The IUPAC name of C6H5CH2COOH is
- phenylethanoic acid
- 2-phenylpropanoic acid
- benzoic acid
- phenylmethanol
General
✓✗Propanal can be obtained from propan-1-ol by
- hot acidic KMnO4
- PCC in CH2Cl2
- conc. H2SO4 at 443 K
- NaBH4
General
✓✗Which of the following gives an aldehyde on reduction with DIBAL-H followed by hydrolysis?
- CH3CH2OH
- CH3COCH3
- CH3CH2CN
- CH3CH2NH2
General
✓✗Which of the following statements about the carboxylate ion RCOO− is correct?
- Both C−O bonds have the same length
- It has no resonance
- The negative charge is on carbon
- One C−O bond is a pure double bond
General
✓✗Statement I: Clemmensen reduction uses Zn−Hg and conc. HCl.
Statement II: Wolff−Kishner reduction uses hydrazine and KOH in ethylene glycol.
Statement II: Wolff−Kishner reduction uses hydrazine and KOH in ethylene glycol.
- Both Statement I and Statement II are correct
- Both Statement I and Statement II are incorrect
- Statement I is correct but Statement II is incorrect
- Statement I is incorrect but Statement II is correct
General
✓✗Statement I: Esters undergo hydrolysis more easily than amides.
Statement II: Acid chlorides undergo hydrolysis more easily than esters.
Statement II: Acid chlorides undergo hydrolysis more easily than esters.
- Both Statement I and Statement II are correct
- Both Statement I and Statement II are incorrect
- Statement I is correct but Statement II is incorrect
- Statement I is incorrect but Statement II is correct
General
✓✗Reduction of aldehydes with NaBH4 or LiAlH4 gives
- carboxylic acids
- primary alcohols
- secondary alcohols
- tertiary alcohols
General
✓✗Assertion: Aldehydes are more reactive than ketones towards nucleophilic addition.
Reason: Ketones have two electron-releasing alkyl groups that reduce the electrophilicity of the carbonyl carbon and cause more steric hindrance.
Reason: Ketones have two electron-releasing alkyl groups that reduce the electrophilicity of the carbonyl carbon and cause more steric hindrance.
- Both Assertion and Reason are true and Reason is the correct explanation of Assertion
- Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
- Assertion is true but Reason is false
- Both Assertion and Reason are false
General
✓✗The aldol condensation product of two molecules of propanone (after dehydration) is
- 2-methylpent-2-enal
- 4-hydroxy-4-methylpentan-2-one
- hex-3-en-2-one
- 4-methylpent-3-en-2-one (mesityl oxide)
General
✓✗Which of the following gives benzoic acid on oxidation with alkaline KMnO4 followed by acidification?
- Ethylbenzene
- Phenol
- Benzene
- tert-Butylbenzene
General
✓✗Acetophenone, when reacted with a base, C2H5ONa, yields a stable compound which has the structure
- C6H5CH(OH)CH(OH)C6H5
- C6H5CH(CH3)CH2COC6H5
- C6H5C(CH3)=CHCOC6H5
- C6H5C(OH)(CH3)C(OH)(CH3)C6H5
General
✓✗The Rosenmund reduction converts an acyl chloride into
- an alcohol
- an alkane
- an aldehyde
- a ketone
General
✓✗1-Methylcyclohexene on ozonolysis (Zn/H2O) gives
- heptane-2,6-dione
- 6-oxoheptanal
- cyclohexanone and methanal
- hexanedial and ethanal