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 Multiple Choice QuestionsMultiple Choice Questions

41.

The IUPAC name of acryldehdye is

  • prop-2-en-l-al

  • propenylaldehyde

  • but-2-en-l-al

  • propenal


42.

The structures of (CH3)3CBr and CH3[CH2]3 Br represent

  • chain isomerism

  • position isomerism

  • chain as well as position isomerism

  • functional isomerism


43.

Petrol for aviation purpose must contain

  • straight chain hydrocarbons

  • aromatic hydrocabrons

  • olefinic hydrocarbons

  • highly branched chain paraffins


44.

The solubility product of Hg2l2 is equal to

  • Hg22+I-

  • [Hg2+][I-]

  • Hg22+I-2

  • [Hg2+][I-]2


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45.

Which of the following fluorides does not exist?

  • NF5

  • PF5

  • AsF5

  • SbF5


46.

IUPAC name of (CH3)3 CCl is

  • n-butyl chloride

  • 3-chloro butane

  • 2-chloro-2-methylpropane

  • t-butyl chloride


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47.

The isomerism that arises due to restricted bond rotation is

  • metamerism

  • optical isomerism

  • position isomerism

  • geometrical isomerism


D.

geometrical isomerism

Basic needs for geometrical isomerism are

(i) Presence of double bond, i.e., restricted rotation which also may be in case of single bond as in cycloalkanes.

(ii) Doubly bonded carbon atom must be linked to two different groups.


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48.

The only o  p-directing group which is deactivating in nature is

  • -NH2

  • -OH

  • -X(halogens)

  • -R(alkyl groupd)


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49.

Which of the organic compounds will give red colour in Lassaigne test ?

  • C6H5NH2

  • None of these


50.

The IUPAC name of the following compound is

 

  • 1, 2-dimethyl-2-butenol

  • 3-methylpent-3-en-2-ol

  • 3, 4-dimethyl-2-buten-4-ol

  • None of the above


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