EmSAT EmSAT Chemistry 2

Question 1

What is an organic compound?

Accepted Answer

A compound based on carbon-hydrogen bonds

Answer

Organic compounds are primarily defined as compounds containing carbon-hydrogen (C-H) bonds. They form the basis of living organisms and synthetic materials like plastics.

Question 2

What functional group characterizes alcohols?

Accepted Answer

−OH

Answer

Alcohols contain the hydroxyl functional group (−OH) attached to a carbon atom. Examples include ethanol (C₂H₅OH) and methanol (CH₃OH).

Question 3

What is the IUPAC name for CH₃CH₂CH₃?

Accepted Answer

Propane

Answer

CH₃CH₂CH₃ has 3 carbon atoms in a straight chain. The prefix 'prop-' means 3 carbons, and since all bonds are single bonds, it is propane.

Question 4

What type of reaction occurs when a carboxylic acid reacts with an alcohol?

Accepted Answer

Esterification

Answer

When a carboxylic acid reacts with an alcohol (typically with an acid catalyst), it forms an ester and water in an esterification reaction.

Question 5

Which of the following is a saturated hydrocarbon?

Accepted Answer

Ethane (C₂H₆)

Answer

Saturated hydrocarbons contain only single C−C bonds (alkanes). Ethane (C₂H₆) is fully saturated. Ethene and ethyne contain double and triple bonds respectively.

EmSAT Practice Test

EmSAT Practice Test

EmSAT EmSAT Chemistry 2