Question 1

Which of the following is the general formula for alkanes?

Accepted Answer

Alkanes are saturated hydrocarbons with only single bonds, following the general formula CnH2n+2.

Question 2

What is the molecular formula of ethene?

Accepted Answer

Ethene is an alkene with two carbon atoms and a double bond, having the molecular formula C2H4.

Question 3

Which functional group is present in alcohols?

Accepted Answer

Alcohols contain the hydroxyl functional group (-OH) bonded to a carbon atom.

Question 4

What type of bond exists between carbon atoms in diamond?

Accepted Answer

Diamond is a form of carbon where each carbon atom is bonded to four other carbon atoms through strong covalent bonds.

Question 5

Which property of carbon allows it to form a vast number of organic compounds?

Accepted Answer

Carbon's tetravalency (ability to form four covalent bonds) and its capacity to form chains and rings with other carbon atoms enables the formation of millions of organic compounds.

Question 6

What is the general formula for saturated hydrocarbons (alkanes)?

Accepted Answer

Alkanes are saturated hydrocarbons containing only single bonds between carbon atoms, and their general formula is CnH2n+2.

Question 7

Which of the following is a functional group present in alcohols?

Accepted Answer

The hydroxyl group (-OH) is the characteristic functional group in alcohols that determines their chemical properties.

Question 8

What is the molecular formula of ethene (ethylene)?

Accepted Answer

Ethene is an unsaturated hydrocarbon with a double bond between two carbon atoms, giving it the molecular formula C2H4.

Question 9

Carboxylic acids contain which functional group?

Accepted Answer

The carboxyl group (-COOH) is the defining functional group of carboxylic acids, consisting of a carbonyl and hydroxyl group bonded together.

Question 10

Which of the following carbon compounds has a general formula CnH2n and contains one carbon-carbon double bond?

Accepted Answer

Alkenes have the general formula CnH2n and contain one C=C double bond, making ethene (C2H4) the simplest alkene.

Question 11

What is the IUPAC name of the compound with the structure CH3-CH2-CH2-CH3?

Accepted Answer

This compound has 4 carbon atoms in a straight chain with only single C-C bonds, which is the definition of butane (C4H10).

Question 12

Which property of carbon allows it to form millions of different compounds?

Accepted Answer

Carbon's tetravalency (forming four covalent bonds) combined with its ability to form C-C bonds creates the structural diversity needed for millions of organic compounds.

Agniveer Army GD Carbon Compounds

Carbon Compounds — Practice Questions