alkanes

Question 1

are they a class of hydrocarbons

Answer 1

yes

Question 2

what is their general formula

Answer 2

CnH2n+2

Question 3

are they saturated or unsaturated hydrocarbons

Answer 3

saturated

Question 4

define a saturated hydrocarbon

Answer 4

the carbon atoms in the structure are bonded to the maximum number of hydrogen atoms possible and they dont have any C=C bonds

Question 5

list all the alkanes up to decane

Answer 5

methane hexane
ethane heptane
propane octane
butane nonane
pentane decane

Question 6

draw the structural formula of heptane

Question 7

draw the shorterned structural formula of heptane

Question 8

do alkanes always have straight chains

Answer 8

no, they can have straight chains or branched chains

Question 9

draw the branched structural isomer of butane

Question 10

what group does 2-methylpropane have

Answer 10

an alkyl group(side group)

Question 11

whats the general formula of an alkyl group

Answer 11

CnH2n+1

Question 12

do we have to write the 2 infront of methyl propane

Answer 12

no because even if we count the carbons from the left or the right it doesnt change the number we get. Its good to though

Question 13

what letter represents an alkyl group

Answer 13

R

Question 14

name all the alkyl groups up to decyl

Answer 14

methyl hexyl
ethyl heptyl
propyl octyl
butyl nonyl
pentyl decyl