What is the general formula for alkanes?

Exploring Alkanes: A Comprehensive Test

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SHIVANGI THAKKER
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
CnH2n
C(n-1)H(2n-1)
C2nH2n
CnH(2n+2)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Describe the type of bonding present in alkanes.
Ionic bonding
Hydrogen bonding
Covalent bonding
Metallic bonding
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the significance of the tetrahedral geometry in alkanes?
Tetrahedral geometry is only found in ionic compounds.
The tetrahedral shape is irrelevant to the stability of alkanes.
Tetrahedral geometry leads to higher boiling points in all organic compounds.
The tetrahedral geometry allows for stable molecular structures and influences the physical and chemical properties of alkanes.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you determine the longest carbon chain in an alkane?
Identify the carbon chain with the most branches
Select the first carbon chain you see
Count all carbon atoms regardless of continuity
Identify and count all continuous carbon chains; the longest one is the longest carbon chain.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the IUPAC name for C5H12?
Propane
Pentane
Hexane
Butane
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Explain the difference between straight-chain and branched alkanes.
Both straight-chain and branched alkanes have the same structural formula.
Branched alkanes have a linear structure, while straight-chain alkanes have branches.
Straight-chain alkanes have a linear structure, while branched alkanes have one or more branches off the main chain.
Straight-chain alkanes are always more stable than branched alkanes.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the physical states of lower alkanes at room temperature?
Lower alkanes are all solids at room temperature.
Lower alkanes are all liquids at room temperature.
Lower alkanes are gases only when heated.
Lower alkanes are gases at room temperature, except for pentane and higher alkanes which are liquids or solids.
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