Electron deficient molecule is : from Chemistry Chemical Bonding

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 Multiple Choice QuestionsMultiple Choice Questions

561.

Which of the following is paramagnetic ?

  • N2

  • C2

  • N2+

  • O22-


562.

Assertion : SeCl4 does not have a tetrahedral structure.

Reason : Se in SeCl4 has two lone pairs.

  • 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.


563.

Intermolecular hydrogen bonding is strongest in :

  • C2H5OH

  • HF

  • H2O

  • CH3COCH3


564.

Hybridization present in ClF3 is :

  • sp2

  • sp3

  • dsp2

  • sp3d


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565.

Number of electrons surrounding Kr in KrF2 is :

  • 10

  • 6

  • 4

  • 8


566.

H - I - O bond angle in H2O2 :

  • 90o

  • 180o

  • 109.5o

  • 94.8o


567.

Assertion : Molecular nitrogen is less reactive than molecular oxygen.

Reason : The bond length of N2 is shorter than that of oxygen.

  • 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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568.

Electron deficient molecule is :

  • CCl4

  • PCl5

  • BF3

  • SF6


C.

BF3

Structure of BF3 is ;

In this example octet is incomplete .


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569.

Number of unpaired electrons in O2 molecule is :

  • zero

  • one

  • two

  • four


570.

Bond order in benzene is :

  • 1

  • 2

  • 1.5

  • none of these


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