Chemistry - 9 Chapter - 5Chemical BondingTest - 10

Chemistry - 9 Chapter - 5
Chemical Bonding
Test - 10

1. When atoms share two electrons each a _________ bond is formed

a) Double covalent
b) A covalent
c) Single covalent

2. Atoms can share three electrons each to form a _____ bond.

a) Tri covalent
b) Single covalent
c) Double covalent
d) Triple covalent

3. Double and triple covalent bonds have two and three electrons pair, which are__________?
Mutually shared between two atoms Mutually shared by three atoms Mutually shared by four atoms All answers are correct

a) Mutually shared by four atoms
b) Mutually shared between two atoms
c) Mutually shared by three atoms
d) All answers are correct

4. A single covalent bond is represented by a
double line?
False True

a) False
b) True

5. A double covalent bond is represented by double line?
True False

a) False
b) True

6. Mutually shared electrons may be shown by a cross and dot?
True False

a) False
b) True

7. Show diagrammatically formation of single, double. and triple covalent bond as given on page ? (See and Remember the Diagramme)

a) 97 ( Practice Drawing These )
b) 98 ( Practice Drawing These )"
c) 99 ( Practice Drawing These )" 100 ( Practice Drawing These )"

8. How atoms of all elements exist in this universe?

a) Exist as independent atoms
b) Exist as combination of atoms except noble gases
c) Exist as molecules
d) Exist as compounds

9. When positively charged _______are held together by freely moving electrons, the bond formed is called a metallic bond?
metal ions Gas ions Liquid ions Free Ions

a) Liquid ions
b) Free ions
c) Gas ions
d) Metal ions

10. After mutually sharing their electrons the bonded atoms acquire the electronic configuration of?
Nearest noble gas Molecules Noble gas No answer is correct

a) No answer is correct
b) Noble gas
c) Nearest noble gas
d) Molecules

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