Subject

Chemistry

Class

JEE Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

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41.

Name of the following reaction is

  • Reimer-Tiemann

  • Kolbe-Schmitt

  • Cannizzaro

  • Gattermann


B.

Kolbe-Schmitt

The given reaction is known as Kolbe-Schmidt reaction. It is used to get salicylic acid.


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42.

X and Y in the below reaction are .... and .... respectively

C6H5 - CO2H + X heat C6H5 - COCl QuinolineH2, Pd / BaSO4

  • SOCl2 and C6H5CHO

  • (COCl)2 and C6H5CH3

  • SOCl2 and C6H5CH3

  • (COCl)2 and C6H5CH2OH


43.

The major product P formed in the following reaction is


44.

The correct increasing order of the acidic strength of acids, butyric acid (I), 2-chlorobutyric acid (II), 3-chlorobutyric acid (III) and 2, 2-dichlorobutyric acid (IV) is 

  • I < II < III < IV

  • III < II < IV < I

  • I < III < II < IV

  • III < I < II < IV


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45.

The correct order of increasing reactivity of the following alkyl halides, CH3CH2CH(Br)CH3

(I) CH3CH2CH(Br)CH3

(II) (CH3)2CClCH2CH3

(III) CH3CH2CH2Cl and

(IV) Towards SN2 displacement is

  • I < II < III < IV

  • III < I < IV < II

  • III < I < II < IV

  • II < IV < I < III


46.

The condensation reaction between one equivalent of acetone and two equivalents of benzaldehyde in presence of dilute alkali leads to the formation of

  • Benzalacetophenone

  • Benzylideneacetone

  • Dibenzylideneacetone

  • Benzoic acid and acetic acid


47.

The product Y for the below reaction is


48.

The product formed in the following reaction is


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