Subject

Chemistry

Class

NEET Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

51.

Assertion : The solubility of a gas in a liquid increases with increase of pressure.

Reason : The solubility of a gas in a liquid is directly proportional to the pressure of the gas.

  • If both assertion and reason are true and reason is the correct explanation of assertion.

  • If both assertion and reason are true but reason is not the correct explanation of assertion.

  • If assertion is true but reason is false.

  • If both assertion and reason are false.


52.

Which is the major product formed when C6H5CONHC6H5 undergoes nitration?


53.

If phthalic acid is treated with NH3 and then it is first heated weakly then strongly, the final product formed is


54.

In a set of reactions, acetic acid yielded a product S,

CH3COOH SOCl2 P  Anhy. AlCl3Benzene Q HCN R HOHS

The structure of S would be


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55.

Which is correct example of condensation polymer?

  • Nylon, Buna-S

  • Teflon, Buna-N

  • Nylon 6,6, Dacron

  • Neoprene, Buna-S


56.

But-1-ene H3O(CH3COO)2?

The product in the above reaction is

  • CH3CH2CH2CH2OH

  • CH3CH2CH(OH)CH3

  • CH2=CH2CH(OH)-CH3

  • CH3-CH=C(OH)-CH3


57.

Nitrobenzene (PhNO2Zn + NH4ClP ?

  • C6H5NH2

  • C6H5NHOH

  • C6H5-N=O

  • C6H6


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58.

PhCH2Cla.q. NaCl? Catalytic hydrogenation(U)

The final product (U) is:

  • C6H5CH2CH2NH2

  • C6H5CH2CONH2

  • C6H5CH2NH2

  • C6H5CH2NHCH3


A.

C6H5CH2CH2NH2

PhCH2Cla.q NaCNPhCH2CNCat.hydrogenationH2,PdPhCH2CH2NH2

                                                                (U)


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59.

An aromatic compound C7H6Cl(A), gives AgCl on boiling with alcoholic AgNO2 solution and yields C,HOCI on treatment with sodium hydroxide. (A) on oxidation gives monochlorobenzoic acid. The compound (A) is:


60.

Assertion: HC= C- is more stable than H2C CH-
Reason : HC C- has more s-character than HC= CH-

  • If both assertion and reason are true and reason is the correct explanation of assertion.

  • If both assertion and reason are true but reason is not the correct explanation of assertion.

  • If assertion is true but reason is false.

  • If both assertion and reason are false.


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