Alkanes(organic)

Question 1

What is the general formula for alkanes?

Answer 1

CnH2n+2

Question 2

What is the geometry of carbon atoms in alkanes?

Answer 2

tetrahedral

Question 3

Approximately, what is the bond angle in a tetrahedral geometry?

Answer 3

109.5°

Question 4

How do longer carbon chains affect the boiling point of alkanes?

Answer 4

they increase the boiling point

Question 5

Which type of intermolecular force is responsible for the boiling point trends in alkanes?

Answer 5

induced dipole-dipole forces

Question 6

Which alkane is expected to have a higher boiling point?
methane (CH4)

propane (C3H8)

ethane (C2H6)

butane (C4H10)

Answer 6

butane (C4H10)

Question 7

What is the reason for the difference in boiling points between butane and methylpropane?

Answer 7

butane is a straight-chain alkane, allowing closer packing

Question 8

What is the general formula for cycloalkanes?

Answer 8

CnH2n

Question 9

Alkanes are ___________ hydrocarbons, meaning they contain only carbon-carbon single bonds.

Answer 9

saturated