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Pretest-1 Hydrocarbon

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

What the name of each atom below?

How many electron of each atom?

a)

Hydrogen (1 electron)
Carbon (12 electrons)

b)

Hydrogen (1 electron)
Cesium (6 electrons)

c)

Hydrogen (1 electrons)
Calcium (12 electrons)

d)

Hydrogen (1 electron)
Carbon (6 electrons)

2.

Writedown the Bohr's electron configuration for carbon atom.

a)

1s2 2s2 2p6

b)

1s2 2s2 2p4

c)

1s2 2s2 2p2

d)

1s2 1p4

3.

Electron valence is the outer electrons of an atom. Number of electron valence for 6C12 is ... .

a)

12

b)

6

c)

5

d)

4

4.

Based on the lewis structure above, what the bonding type of compound?

a)

single bond covalent

b)

double bond covalent

c)

triple bond covalent

d)

ionic

5.

Which one of these structure that have double bond?

a)

b)

c)

d)

6.

Empirical formula has the simplest number than molecular formula. Which one of these formula would be the Empirical Formula?

a)

C2H4

b)

C2H5

c)

C3H8

d)

C5H10

7.

Many source of carbon , they are ... .
(you may choose more than one)

a)
b)
c)
d)
8.

Combustion is one of carbon reactions. This reaction needs carbon compound and ____ as reactants.

a)

fire

b)

lighter

c)

heat

d)

oxygen

9.

Hydrocarbon which has only single bond in their structure, it is an ____

a)

alkane

b)

alkene

c)

alkyne

d)

alkaline

10.

Which one of this molecular formula is the hydrocarbon?

a)

C6H12O6

b)

CH4

c)

C2H5N

d)

C2F2