Which one of the following molecules contain both ionic and coval

Previous Year Papers

Download Solved Question Papers Free for Offline Practice and view Solutions Online.

Test Series

Take Zigya Full and Sectional Test Series. Time it out for real assessment and get your results instantly.

Test Yourself

Practice and master your preparation for a specific topic or chapter. Check you scores at the end of the test.
Advertisement

 Multiple Choice QuestionsMultiple Choice Questions

171.

The calculated magnetic moment (in Bohr magnetons of Cu2+ ion is)

  • 1.73

  • zero

  • 2.6

  • 3.4


Advertisement

172.

Which one of the following molecules contain both ionic and covalent bonds?

  • CH2Cl2

  • K2SO4

  • BeCl2

  • SO2


B.

K2SO4

Among the given options, K2SO4 consists of both ionic and covalent bonds. In this, sulfate ion is held together with covalent bonds and the potassium ions are ionically bonded to the sulfate ions.


Advertisement
173.

What is the hybridization state of the central atom in the conjugate base of NH4+ ion?

  • sp

  • sp3

  • sp2

  • dsp2


174.

If the bond length and dipole moment of a diatomic molecule are 1.25 A and 1.0 D respectively, what is the percent ionic character of the bond ?

  • 10.66

  • 12.33

  • 16.66

  • 19.33


Advertisement
175.

Which of the following is not correct regarding the properties of ionic compounds?

  • Ionic compounds have high melting and boiling points

  • Their reaction velocity in aqueous medium is very high

  • Ionic compounds in their molten and aqueous solutions do not conduct electricity

  • They are highly soluble in polar solvents


176.

Match the following lists:
List - I List - II
A. Ethane 1. sp carbons
B. Ethylene 2. 6 sp2 carbons
C. Acetylene 3. 2 sp3 carbons
D. Benzene

4. 2 spcarbons

5. 1 sp and 1 sp2 carbons

  • A - 3; B - 4; C - 1; D - 2

  • A - 4; B - 5; C - 3; D - 2

  • A - 3; B - 1; C - 2; D - 5

  • A - 2; B - 3; C - 4; D - 5


177.

The number of oxygen atoms bonded to one phosphorous atom in P4O6 is

  • 4

  • 3

  • 6

  • 5


178.

Which of the following has S - S bond?

  • H2S2O6

  • H2S2O7

  • H2S2O8

  • Mustard gas


Advertisement
179.

Which of the following pair of ions have same paramagnetic moment?

  • Cu2+, Ti3+

  • Mn2+, Cu2+

  • Ti4+, Cu2+

  • Ti3+, Ni2+


180.

Average C-H bond energy is 416 kJ mol-1. Which of the following is correct?

  • CH4 (g) + 416 kJ → C (g) + 4H (g)

  • CH4 (g) → C (g) + 4H (g) + 416 kJ

  • CH4 (g) + 1664 kJ → C (g) + 4H (g)

  • CH4 (g) → C (g) + 4H (g) + 1664 kJ


Advertisement