naming alkanes

Which is the structures with IUPAC nomenclature

2,2,4-trimethylpentane

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Give the IUPAC name for this compound

• 3-methyl-4-ethylhexane

• 3-ethyl-4-methylhexane

• 3-methyl-4-ethylheptane

• 3-ethyl-4-methylheptane

Name the following

• 4-ethyl-6-methyl nonane
• 3-propyl-5-methyl octane
• 2,4-dipropyl hexane
• 4-ethyl-2-propyl heptane

If an alkane has 10 carbon atoms, how many hydrogen atoms will it have?

• 20

• 22

• 40

• 42

• 2,3-dimethylmethane

• 2-methylbutane

• 2-ethylpropane

• pentane

• 5-methyl-4methyl-heptane

• 3-ethyl-4methyl-heptane

• 3-ethyl-4-methylheptane

• 4-methyl-5methylheptane

Methyl group has the molecular formula

• CH₄

• CH₃

• CH

• CH₂