This reaction is called from Chemistry Alcohols, Phenols a

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

491.

The final product obtained in the reaction,


492.

Phenol is heated with phthanlic anhydride in the presence of conc. H2SO4. The product gives pink colour with alkali. The product is

  • phenolphthalein

  • bakelite

  • salicylic acid

  • flurorescein


493.

Consider the following reaction sequence,

Isomers are

  • C and E

  • C and D

  • D and E

  • C, D and E


494.

When glycerol is treated with excess of HI, it produces

  • 2-iodopropane

  • allyl iodide

  • propene

  • glycerol triiodide


Advertisement
495.

Which one of the following compounds will be most readily dehydrated?


496.

The alcohol having molecular formula C4H9OH, when shaken with a mixture of anhydrous ZnCl2 and cone. HCl gives an oily layer product after five minutes. The alcohol is

  • H3C-(CH2)3-OH

  • (CH3)2CH-CH2OH

  • (CH3)3C-OH

  • H3C-CH(OH)CH2-CH3


Advertisement

497.

 This reaction is called

  • Reimer-Tiemann reaction

  • Lederer-Manasse reaction

  • Sandmeyer reaction

  • Kolbe's reaction


B.

Lederer-Manasse reaction

The Lederer-Manasse reaction is an organic reaction of aromatic hydroxyalkylation. It allows the introduction of a -CH2 OH group on a phenolic aromatic ring.


Advertisement
498.

Self condensation of two moles of ethyl acetate in the presence of sodium ethoxide after acidification yield

  • acetic acid

  • acetoacetic ester

  • ethyl propionate

  • ethyl butyrate


Advertisement
499.

The formula of ethyl carbinol is

  • CH3OH

  • CH3CH2OH

  • CH3CH2CH2OH

  • (CH3)3COH


500.

Which of the following gives red colour in Victor Meyer's test?

  • n-propyl alcohol

  • Isopropyl alcohol

  • tert-butyl alcohol

  • sec-butyl alcohol


Advertisement