In 1- butene number of σ-bonds is from Chemistry Chem

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 Multiple Choice QuestionsMultiple Choice Questions

161.

Geometry of ammonia molecule and the hybridisation of nitrogen involved in it are

  • sp3-hybridisation and tetrahedral geometry

  • sp3-hybridisation and distorted tetrahedral geometry

  • sp2-hybridisation and triangular geometry

  • None of the above


162.

Be in BeCl2 undergoes

  • diagonal hybridisation

  • trigonal hybridisation

  • tetrahedral hybridisation

  • no hybridisation


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163.

In 1- butene number of σ-bonds is

  • 8

  • 10

  • 11

  • 12


C.

11

First bond between any two atoms is σ bond and rest are π bonds. In the structure of 1-butene, there are 11 σ bonds. It can be represented as-


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164.

The catenation tendency of C, Si and Ge is in the order Ge < Si < C. The bond energies (in kJ mol-1) of C-C, Si-Si and Ge-Ge bonds, respectively are

  • 167, 180, 348

  • 180, 167, 348

  • 348, 167, 180

  • 348, 180, 167


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165.

The number of lone pairs of electrons present on : Xe in XeF4 is

  • 3

  • 4

  • 1

  • 2


166.

Which one of the following ions exhibits highest magnetic moment ?

  • Cu2+

  • Ti3+

  • Ni2+

  • Mn2+


167.

Which of the following statements is true?

  • Hybridisation of the central atom in NH3 and CH4 is sp2

  • BeCl2 has V shape while SO2 is linear

  • SF6 is octahedral and F-S-F bond angle is 90°

  • CO2 has dipole moment


168.

Bond dissociation energies of HF, HCl, HBr follow the order

  • HCl > HBr > HF

  • HF > HBr > HCl

  • HF > HCl > HBr

  • HBr > HCl > HF


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169.

Which one ofthe following is a correct set?

  • H2O, sp3, angular

  • H2O, sp2, linear

  • NH4+, dsp2,square planar

  • CH4, dsp2, tetrahedral


170.

The bond energies (in kJ mol-1) of P-H; As- H and N-H are respectively

  • 247, 389 and 318

  • 247, 389 and 318

  • 318, 389 and 247

  • 318, 247 and 389


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