Chemical Bonding-Class-10-MCQs

1) Name the type of bond formed due to transfer of electrons from one atom to another Covalent Ionic Metallic Coordinate

2) Name the type of bond formed due to mutual sharing of electrons between two atoms- Coordinate Covalent Ionic Metallic

3) The type of bond formed when the shared electron pairs are contributed by only one of the combining atoms- Metallic Ionic Covalent Coordinate

4) The number of electrons that an atom of an element loses or gains to form an electrovalent bondt Electrovalency Covalency

5) The condition required for the formation of ionic bond- Low ionisation potential High electron affinity Large electronegativity difference All of the above

6) Identify the ionic compound- NaCl MgCl2 CaO All of the above

7) Chloride ion is more stable than chlorine atom because of- Complete octet in chloride ion Chlorine ion is large sized None of the above All of the above

8) Electropositive atom undergoes- Oxidation Reduction Both oxidation and reduction None of the above

9) An element X with electronic configuration 2,8,7 and Y with electronic configuration 2,8,2 forms the compound- YX Y2X YX2 Y2X3

10) The property not shown by electrovalent compound - Non-volatile Hard solids Slow reaction Soluble in water

11) Which of the following compounds are made up of ions- CO2 CaO NH3 H2S

12) Which of the following will have low melting or boiling point NaCl CaO MgCl2 H2S

13) Which of the following conditions causes formation of covalent compound- Both the atoms should have high electronegativity. Both the atoms should have high electron affinity Both of the above None of the above

14) Identify the polar covalent compound- CH4 H2S CO2 CCl4

15) Identify the non-polar covalent compound- CCl4 NH3 H2O HCl

16) Hydrogen combines with all non-metals with ______ bond Coordinate Ionic Covalent van der waal

17) Identify the ionic compound- MgO SiO2 P2O5 SO2

18) Identify the covalent Compound Al2O3 MgO Na2O Cl2O7

19) The number of single covalent bond and lone pair electrons in ammonia- 1,2 3,1 2,3 1,3

20) Water contains ______ single covalent bond and _______ lone pair of electrons. 1,1 2,2 1,2 2,1

21) The property not shown by carbon tetra chloride is- weak forces of attraction between their molecules. Presence of free ions Insoluble in water undergoes slow reaction

22) The ion which possess covalent bond- water ammonia methane ammonium ion

23) Compound with all the three type of bonds- Sulphuric acid Nitric acid Boric acid Ammonium chloride

24) The number of covalent and coordinate bond in ammonium ion- 3,1 1,3 1,1 2,2

25) The number of covalent, coordinate bond and lone pair in hydronium ion- 2,2,1 1,1,1 0,2,1 2,1,1

Check your progress. 25 questions.

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