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Covalent Bonding

Testing students knowledge on this aspect of the CSEC Syllabus 18 Questions.

 
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1

Which of the following does covalent bonding involve?

  • Losing of electrons
  • Sharing of electrons
  • Gaining of electrons

2

During covalent bonding which of the following is formed?

  • Cation
  • Anion
  • Molecule

3

Which sub-atomic particle is involved in covalent bonding?

  • Protons
  • Neutrons
  • Electrons

4

Which pair of atoms below will participate in covalent bonding?

  • Sodium and chlorine
  • Helium and chlorine
  • Chlorine and chlorine

5

How many electrons are on the outer shell of chlorine?

  • 18
  • 17
  • 7

6

What is the electron pair between two oxygen atoms covalently bonded?

  • 2
  • 4
  • 3

7

Which of the following elments exists as diatomic molecule?

  • Sodium
  • Helium
  • Nitrogen

8

Which is not a property of covalent compounds?

  • Low melting point
  • Gases at rtp
  • Good conductor of heat

9

Which of the following is not a covalent compound?

  • Carbon dioxide
  • Methane
  • Calcium oxide

10

What is the valency of Carbon?

  • 3
  • 4
  • 2

11

What is the valency of Oxygen?

  • 7
  • 4
  • 6

12

What is the oxydation state of Fluorine

  • -2
  • -1
  • +1

13

Which is a property of covalent bonding?

  • Poor conductor of heat
  • Good conductor of heat
  • Solids at rtp

14

How many atoms of fluorine will be bonded to a carbon atom during covalent bonding?

  • 2
  • 5
  • 4

15

Why do atoms form covalent bonds?

  • To lose electrons
  • To share electrons
  • To become more stable

16

What is it called when two nitrogen atoms are bonded together?

  • Triple covalent bond
  • Double covalent bond
  • Single covalent bond

17

What kind of covalent bond is formed between carbon dioxide?

  • Double covalent bond
  • Triple covalent bond
  • Single covalent bond

18

What are pairs of electrons shared between two overlapping atoms is called?

  • Lone pairs
  • Bonding pairs
  • Non of the above

 

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