Previous Year Papers

Download Solved Question Papers Free for Offline Practice and view Solutions Online.

Test Series

Take Zigya Full and Sectional Test Series. Time it out for real assessment and get your results instantly.

Test Yourself

Practice and master your preparation for a specific topic or chapter. Check you scores at the end of the test.
Advertisement

 Multiple Choice QuestionsMultiple Choice Questions

81.

Secondary nitroalkanes can be converted into ketones by using Y. Identify Y from the following

  • aqueous HCl

  • aqueous NaOH

  • KMnO4

  • CO


82.

Alkyl cyanides undergo Stephen reduction to produce

  • aldehyde

  • secondary amine

  • primary amine

  • amide


83.

Reaction of PCl3 and PhMgBr would give

  • bromobenzene

  • chlorobenzene

  • triphenylphosphine

  • dichlorobenzene


84.

Ethylene glycol gives oxalic acid on oxidation with

  • acidified K2Cr2O7

  • acidified KMnO4

  • alkaline KMnO4

  • periodic acid


Advertisement
85.

A Wittig reaction with an aldehyde gives

  • ketone compound

  • a long chain fatty acid

  • olefin compound

  • epoxide


86.

Cannizaro reaction is given by

  • HCHO

  • >C(OH)COOH

  • >CHCH2CHO

  • CH3CH2OH


Advertisement

87.

Identify the reactant.

  • H2O

  • HCHO

  • CO

  • CH3CHO


C.

CO

This reaction is known as Gattermann-Koch reaction. Benzaldehyde may be synthesised by bubbling a mixture of CO and HCl through a solution of benzene, and a catalyst consisting of AlCl3 and a small amount of cuprous chloride.

C6H6 + CO + HCl AlCl3 C6H5CHO +HCl

 


Advertisement
88.

Maleic acid and fumaric acid are

  • position isomers

  • geometric isomers

  • enantiomers

  • functional isomers


Advertisement
89.

Aldol condensation is given by

  • trimethylacetaldehyde

  • acetaldehyde

  • benzaldehyde

  • formaldehyde


90.

Give the IUPAC name for

H3C-CH2-CO-H2C-CH2-CO-OCH3

  • ethyl-4-oxoheptanoate

  • methyl-4-oxoheptanoate

  • ethyl-4-oxohexanoate

  • methyl-4-oxohexanoate


Advertisement