Pretest-1 Hydrocarbon

What the name of each atom below?

How many electron of each atom?

• Hydrogen (1 electron)
  Carbon (12 electrons)
  

• Hydrogen (1 electron)
  Cesium (6 electrons)

• Hydrogen (1 electrons)
  Calcium (12 electrons)

• Hydrogen (1 electron)
  Carbon (6 electrons)

Writedown the Bohr's electron configuration for carbon atom.

• 1s² 2s² 2p⁶

• 1s² 2s² 2p⁴

• 1s² 2s² 2p²

• 1s² 1p⁴

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

• 12

• 6

• 5

• 4

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

• single bond covalent

• double bond covalent

• triple bond covalent

• ionic

Which one of these structure that have double bond?

• 
• 
• 
• 

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

• C₂H₄

• C₂H₅

• C₃H₈

• C₅H₁₀

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

• 
• 
• 
• 

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

• fire

• lighter

• heat

• oxygen

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

• alkane

• alkene

• alkyne

• alkaline

Which one of this molecular formula is the hydrocarbon?

• C₆H₁₂O₆

• CH₄

• C₂H₅N

• C₂F₂