ICSE | CLASS 10 CHEMISTRY | CHAPTER 2 CHEMICAL BONDING| MCQs | Semester 1 || 2021 1.

 

1. A reducing agent is a substance which can (a) Accept electron (b) Donate electrons (c) Accept protons (d) Donate protons 

2. In NH^+4 all the four bonds are..... 

3. Among the following compounds identify the compound that has all three bonds (ionic, covalent and coordinate bond) (a) Ammonia (b) Ammonium chloride (C) Sodium hydroxide (d) Calcium chloride 

4. Due to the presence of strong electrostatic forces of attraction between ions, ionic compounds. (a) Have high melting and boiling points (b) Conduct electricity in solid state (C) Dissolve in kerosene (d) All of the above 

5. Ionic bond is present in which of the following species:(b) CHC13 (C) NaBr (d) CCl4 (a) O2 

6. The type of bonding in HCl molecule is: (a) Polar covalent bond (b) Pure covalent (C) Non-polar(d) Hydrogen bonding 

7. A polar covalent bond will be formed in which one of these pair of atoms:b) H2 (C) Cl2 (d) 02 (a) HF 

8. Which of the following is a common characteristic of a covalent compound ? (a) high melting point (b) consists of molecules (c) always soluble in water (d) conducts electricity when it is in the molten state 

9. Elements which gains electrons is known as: (a) Electropositive elements (b) Electronegative elements 

10. Capacity of an atom to attract the shared pair of electron to itself is called...... 

 

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