Carbon and Its Compounds

Which compound is responsible for the smell of ripe fruits?

1. Esters
2. Alkanes
3. Metals
4. Salts

Which of the following is a property of covalent compounds?

1. High melting point
2. Good electrical conductivity
3. Low melting and boiling points
4. Formation of ions in solid state

What is the chemical name of CH3CH2OH?

1. Methanol
2. Ethanol
3. Ethanoic acid
4. Ethene

Which gas is released when ethanoic acid reacts with sodium carbonate?

1. Hydrogen
2. Oxygen
3. Carbon dioxide
4. Nitrogen

Which process converts vegetable oils into solid fats?

1. Combustion
2. Hydrogenation
3. Oxidation
4. Fermentation

Which type of bond is present in methane?

1. Ionic bond
2. Covalent bond
3. Metallic bond
4. Hydrogen bond

Soap molecules clean dirt because they:

1. Destroy all germs
2. Reduce water temperature
3. Form micelles around grease particles
4. Convert oil into water

The chemical formula of ethanoic acid is:

1. CH3OH
2. CH3COOH
3. C2H6
4. C2H4

Which substance is commonly used for denaturing alcohol?

1. Methanol
2. Ethanoic acid
3. Ethene
4. Propane

Which of the following compounds belongs to the alkene family?

1. Methane
2. Ethene
3. Ethane
4. Propane

What is the functional group present in alcohols?

1. --CHO
2. --COOH
3. --OH
4. --NH2

Which of the following is an example of a saturated hydrocarbon?

1. Ethene
2. Ethyne
3. Ethane
4. Benzene

The number of covalent bonds formed by a carbon atom is:

1. 1
2. 2
3. 3
4. 4

Which property of carbon is responsible for the formation of a large number of compounds?

1. Radioactivity
2. Catenation
3. High density
4. Low melting point