Which of the following is the strongest base? from Chemistry JEE

Subject

Chemistry

Class

JEE Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

11.

The solution of BiCl3 in dil. HCI when diluted with water, white precipitate is formed which is

  • Bismith oxychloride

  • Bismith oxide

  • Bismith hydroxide

  • None of the above


12.

The strongest acid is

  • acetic acid

  • trichloroacetic acid

  • dichloroacetic acid

  • monochloroacetic acid


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13.

Which of the following is the strongest base?

  • C6H5NH2

  • CH3NH2

  • NH3

  • CH3CONH2


B.

CH3NH2

Basic nature of amine is due to the presence of lone pair of electrons on nitrogen atom which is available for the bond formation with Lewis acid. Hence, due to +I effect of -CH3 group, CH3NH2 is the strongest base.


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14.

The geometry of I3- is

  • triangular

  • linear

  • tetrahedral

  • T-shape


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15.

The volume concentration of hydrogen peroxide having 6.8% concentration will be

  • 5

  • 11.2

  • 22.4

  • 20


16.

The degree of ionization of 0.4 M acetic acid will be (Ka = 1.8 × 10)

  • 6.71 × 10-3

  • 1.6 × 10-3

  • 0.4 × 1.8 × 10-3

  • 1.8 × 10-5


17.

Which of the following species shows the maximum magnetic moment?

  • Mn6+

  • Ni2+

  • Fe3+

  • Ag+


18.

C-H bond length is least in

  • acetylene

  • methane

  • ethylene

  • ethane


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19.

[Cu(NH3)4]2+ shows the following hybridization

  • dsp2

  • sp3d

  • dsp3

  • sp3


20.

A solution contains Cl-, I- and SO43- ions in it. Which of the following ion is capable to precipitate all of the above when added in this solution?

  • Pb2+

  • Ba2+

  • Hg2+

  • Cu2+


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