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Chemical Bonding and Molecular Structure · Question 44

AIPMT 2015 (Cancelled)MCQEasy📈 Topic in 62% papers+4−1
1

Which of the following options represents the correct bond order ?

  1. O2- > O2 < O2+
  2. O2- < O2 > O2+
  3. O2- > O2 > O2+
  4. O2- < O2 < O2+

Answer

(4) O2- < O2 < O2+

Solution

Bond order = 12(Nb - Na)

O2 (16 electrons): 12(10 - 6) = 2

O2+ (15 electrons): 12(10 - 5) = 2.5

O2- (17 electrons): 12(10 - 7) = 1.5

∴ O2- < O2 < O2+

Answer: (4)

AIPMT 2015 (Cancelled)

Keep practising — Chemical Bonding and Molecular Structure

2

Maximum bond angle at nitrogen is present in which of the following ?

  1. NO2+
  2. NO3-
  3. NO2
  4. NO2-
AIPMT 2015 (Cancelled)
3

Which of the following species contains equal number of σ- and π-bonds ?

  1. (CN)2
  2. CH2(CN)2
  3. HCO3-
  4. XeO4
AIPMT 2015 (Cancelled)
4

Which of the following molecules has the maximum dipole moment?

  1. CO2
  2. CH4
  3. NH3
  4. NF3
AIPMT 2014
5

Which one of the following species has plane triangular shape?

  1. N3-
  2. NO3-
  3. NO2-
  4. CO2
AIPMT 2014
6

XeF2 is isostructural with

  1. SbCl3
  2. BaCl2
  3. TeF2
  4. ICl2-
NEET 2013
7

Which of the following is a polar molecule?

  1. SiF4
  2. XeF4
  3. BF3
  4. SF4
NEET 2013
8

Which of the following is paramagnetic?

  1. CN-
  2. NO+
  3. CO
  4. O2-
NEET 2013
9

Which one of the following molecules contains no bond?

  1. SO2
  2. NO2
  3. CO2
  4. H2O
NEET 2013
10

The pair of species that has the same bond order in the following is

  1. CO, NO+
  2. NO-, CN-
  3. O2, N2
  4. O2, B2
NEET 2013 (Karnataka)
11

In which of the following pair both the species have sp3 hybridization ?

  1. SiF4, BeH2
  2. NF3, H2O
  3. NF3, BF3
  4. H2S, BF3
NEET 2013 (Karnataka)

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