Question 1

Which of the following molecules is a functional group isomer of pentanoic acid?

Accepted Answer

ethyl propanoate

Answer

butanoic acid

Answer

2-methylbutanoic acid

Answer

pentan-1-ol

Question 2

What are the IUPAC names for the following three molecules?

Accepted Answer

propanal, propanone and propanamide

Answer

propanal, methyl ethanoate, propan-1-amine

Answer

propanoic acid, propanone and propan-1-amine

Answer

propanoic acid, propanone and propanamide

Question 3

What is produced by the reaction between propan-1-ol and hydrogen iodide (HI)?

Accepted Answer

1-iodopropane and water

Answer

propane and water

Answer

1-iodopropane only

Answer

1-iodopropane and hydrogen gas

Question 4

In which of the following homologous series does the smallest molecule contain two carbon atoms?

Accepted Answer

alkenes

Answer

alcohols

Answer

alkanes

Answer

carboxylic acids

Question 5

What is the systematic name for $CH_3CH_2CH_2CH(CH_3)_2?$

Accepted Answer

2-methylpentane

Answer

2-methylpentene

Answer

propyldimethylmethane

Answer

1,1-dimethylbutane

Question 6

Which of the following compounds would be expected to have the lowest boiling point?

Accepted Answer

$CH_3CH_2CH_3$

Answer

$CH_3CH_2CH_2Cl$

Answer

$CH_3CH_2CH_2OH$

Answer

$CH_3CH_2CH_2CH_3$

Question 7

Which of the following statements are true of the homologous series of primary alcohols?
I. The members differ by one $CH_2$ unit.
II. They are all strong bases.
III. They can be oxidized to form carboxylic acids

Accepted Answer

I and III

Answer

I, II and III

Answer

II and III

Answer

I and II

Question 8

What is the product formed by the reaction of $CH_2CH_2$ with $Br_2?$

Accepted Answer

$CH_2BrCH_2Br$

Answer

CHBrCHBr

Answer

CH=CHBr

Answer

$CH_3CH_2Br$

Question 9

Consider the following reaction pathway:
ethene (step 1) → chloroethane (step 2) → ethanol (step 3) → ethanoic acid
What reactions occur in steps 1,2 and 3 of this pathway?

Accepted Answer

addition, substitution, oxidation

Answer

addition, reduction, hydrolysis

Answer

substitution, addition, hydrolysis

Answer

chlorination, substitution, addition

Question 10

When ethanol is heated under reflux with an acidified solution of potassium dichromate, what is the formula of the final product?

Accepted Answer

$CH_3COOH$

Answer

$CH_3COOCH_3$

Answer

$CH_3CH_2CH_2OH$

Answer

$CH_3CH_2CH_3$

Question 11

The ester methyl ethanoate could be made by reacting together which of the following?

Accepted Answer

$CH_3OH$ and $CH_3COOH$

Answer

$CH_3OH$ and $CH_3CH_2COOH$

Answer

$CH_3CH_2OH$ and HCOOH

Answer

$CH_3CH_2OH$ and $CH_3COOH$

Question 12

Which of the structures shown does not have an IUPAC name that ends with ‘-ol’?

Accepted Answer

IV only

Answer

III only

Answer

II and III

Answer

III and IV

Question 13

Consider the following equation for the reaction of methanol with acidified potassium dichromate.
$2K_2Cr_2O_7(aq)$ + $3CH_3OH(aq)$ + $8H_2SO_4(aq)$ → $2Cr_2(SO_4)_3(aq)$ + 3HCOOH(aq) + $2K_2SO_4(aq)$
Which statement about this reaction is not true?

Accepted Answer

Hydrogen ions have been reduced

Answer

Methanol has been oxidized

Answer

Dichromate ions have been reduced

Answer

Sulfate ions have not been oxidized or reduced

Question 14

What hydrocarbons has the formula $C_3H_8?$

Accepted Answer

propane

Answer

prop-1-ene

Answer

prop-1-ane

Answer

propene

Question 15

What is the name of the first member of the alkyne family?

Accepted Answer

ethyne

Answer

ethene

Answer

methyne

Answer

methene

Question 16

Which one of the following is not a member of the alkyne homologous series?

Accepted Answer

$C_3H_8$

Answer

$C_6H_{10}$

Answer

$C_{10}H_{18}$

Answer

$C_2H_2$

Question 17

How many different alkenes are there with the molecular formula $C_4H_8?$

Accepted Answer

3

Answer

4

Answer

2

Answer

1

Question 18

Which one of the following alternatives lists the compounds in order of increasing boiling points?

Accepted Answer

ethane, propane, ethanol, propan-1-ol

Answer

ethanol, ethane, propan-1-ol, propane

Answer

ethane, ethanol, propane, propan-1-ol

Answer

ethanol, propan-1-ol, ethane, propane

Question 19

Polyethenol (also called polyvinyl alcohol or PVA) is a polymer often used as a water-soluble film in packaging. The monomer used to form polyethylene is shown below.
Which one of the following structures shows a possible segment of the polymer?

Accepted Answer

https://uploads.quizalize.com/ce2b13b9-7afe-474f-8c2e-665284e8add3/question/c03a4a89e092548cdff1f665f3ac8a064e0a46cf.JPG

Answer

https://uploads.quizalize.com/ce2b13b9-7afe-474f-8c2e-665284e8add3/question/8c1c2152fb056a92e9aa310345d22f85f82372b5.JPG

Answer

https://uploads.quizalize.com/ce2b13b9-7afe-474f-8c2e-665284e8add3/question/e287ff594fed0868c59a8e92b9b9e91ea5309033.JPG

Answer

https://uploads.quizalize.com/ce2b13b9-7afe-474f-8c2e-665284e8add3/question/24f10ad63e36083f752f311c8db59876634bc428.JPG

Question 20

Polyethylene is a polymer that has a wide range of uses. It can be produced as a high-density product (HDPE) or a low-density form (LDPE) that is softer and more flexible. Compared to LDPE, HDPE has:

Accepted Answer

A higher softening temperature due to a smaller degree of branching of the polymer chain

Answer

A higher softening temperature due to a greater degree of branching of the polymer chain

Answer

A lower softening temperature due to a greater degree of branching of the polymer chain

Answer

A lower softening temperature due to a smaller degree of branching of the polymer chain.

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