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Atomic Structure and Chemical Bonding

Atomic Structure and Chemical Bonding Test covers chemistry questions for practice

15 Questions Published
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Questions

Question 1 Multiple Choice (Single Answer)

Which of the following pairs of molecules have same hybridization?

  1. Methane and carbon dioxide
  2. Methane and ammonia
  3. Carbon dioxide and ammonia
  4. Boron trifluoride and water
  5. Ammonia and boron trichloride
Question 2 Multiple Choice (Single Answer)

Which of the following have tetrahedral geometry?

  1. CCl4
  2. SO4--
  3. SF4
  4. XeF4
  5. NH4+
  1. 1, 2 and 5
  2. 1, 4 and 5
  3. 2, 3 and 4
  4. 1, 3 and 5
  5. 3, 4 and 5
Question 3 Multiple Choice (Single Answer)

Which of the following molecules does not have sp3 hybridization?

  1. Ammonia
  2. Water
  3. Methane
  4. Boron trihydride
  5. Chloroform
Question 4 Multiple Choice (Single Answer)

C in ethene has which type of hybridization?

  1. sp
  2. sp2
  3. sp3
  4. dsp2
  5. sp3d2
Question 5 Multiple Choice (Single Answer)

Which of the following is the correct option about hybridization and shape of BF3?

  1. sp3, Tetrahedral
  2. sp, Linear
  3. sp2, Trigonal planar
  4. sp2, Trigonal pyramidal
  5. sp3, Tetrahedral
Question 6 Multiple Choice (Single Answer)

Bohr radius in pm (picometer) is _________.

  1. 56.3
  2. 52.9
  3. 25.9
  4. 52.2
  5. 65.3
Question 7 Multiple Choice (Single Answer)

Charge to mass ratio of electron was discovered for the first time by

  1. J. J. Thomson
  2. R.A. Millikan
  3. Michael Faraday
  4. Chadwick
  5. Henri Becquerel
Question 8 Multiple Choice (Single Answer)

Match entries in Group I with that in Group II and select the correct answer.
Group – I 
        </strong>|<strong>Group &#x2013; II</strong>|

|A. Isotope|1. Same number of neutrons|
|B. Isobar|2. Same number of protons|
|C. Isotone|3. Same number of neutrons and protons|

  1. A - 1, B - 3, C - 2
  2. A - 2, B - 1, C - 3
  3. A - 2, B - 3, C - 1
  4. A - 3, B - 2, C - 1
  5. A - 1, B - 2, C - 3
Question 9 Multiple Choice (Single Answer)

Choose the correct match with hybridization of carbon in these molecules.
Column – I 
        </strong>|<strong>Column &#x2013; II</strong>|

|A. sp2|1. Methane|
|B. sp3|2. Carbon dioxide|
|C. sp|3. Ethene|

  1. A - 1, B - 3, C - 2
  2. A - 2, B - 3, C - 1
  3. A - 3, B - 1, C - 2
  4. A - 3, B - 2, C - 1
  5. A - 1, B - 2, C - 3
Question 10 Multiple Choice (Single Answer)

“No two electrons in an atom can have the same set of four quantum numbers”. This rule is called as

  1. Hund’s Rule
  2. Aufbau Principle
  3. Pauli Exclusion Principle
  4. Heisenberg’s Uncertainty Principle
  5. Bohr model
Question 11 Multiple Choice (Single Answer)

Which of the following are isoelectronic species?
A: Al+3
B: Cl-
C: Mg+2
D: O-2

  1. A, B and C
  2. B, C and D
  3. A, C and D
  4. A, B and D
  5. A, B, C and D
Question 12 Multiple Choice (Single Answer)

Which of the following have same electronic configuration as Fe+3?

  1. Fe+2
  2. Mn+2
  3. V+2
  4. Cr+3
  5. Co+2
Question 13 Multiple Choice (Single Answer)

Which of the following statements is/are correct?
P: s orbitals are spherical in shape.
Q: p orbitals are dumbbell shaped.
R: d orbitals are spherical in shape.

  1. P and R
  2. Q and R
  3. P and Q
  4. Only P
  5. Only R
Question 14 Multiple Choice (Single Answer)

Electronic configuration in ground state of Cu is

  1. 1s2 2s2 2p6 3s2 3p6 4s2 3d9
  2. 1s2 2s2 2p6 3s2 3p6 4s2 3d8
  3. 1s2 2s2 2p6 3s2 3p6 4s1 3d9
  4. 1s2 2s2 2p6 3s2 3p6 4s1 3d10
  5. 1s2 2s2 2p6 3s2 3p6 4s2 3d10
Question 15 Multiple Choice (Single Answer)

Which of the following molecules do not have linear shape?

  1. HCN
  2. C2H2
  3. CO2
  4. SO2
    5. H2O
  1. 1 and 2
  2. 2 and 4
  3. 2, 3 and 4
  4. 4 and 5
  5. 3 and 4
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