What is the molecular formula for CH_3 -(CH_2)_4-CH_3? A. CH_3-CH_2-CH_2-CH_2-CH

Question

What is the molecular formula for CH_3 -(CH_2)_4-CH_3? A. CH_3-CH_2-CH_2-CH_2-CH_2-CH_3 B. hexane C. C_6H_12 D. C_6H_14 Isomers will have A. The same number of C atoms B. Different numbers of each type of atom C. The same shape D. The same number of each type of atom, different shape Which is not a standard way to represent organic molecules? A. Complete structural formula B. Scientific notation C. Condensed structural formula D. Line polygon formula What is a common organic molecule in your car and where is it? A. Octane in the gas tank B. Chlorofluorocarbons in the air conditioner C) C_15H_32 in the engine oil D. All of the above

Explanation / Answer

1)

CH3-(CH2)4-(CH3) is CH3-CH2-CH2-CH2-CH2-CH3 which is C6H14

This is hexane

Answer: B

2)

Isomers will have same number of all the atoms but the arrangement of atoms will be different

Answer: D

3)

Scientific notation is used to represent number and not a formula

Hence this can’t be used to represent organic molecules

Answer: B

4)

All are correct

I am allowed to answer only 1 question at a time

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