Catenation and Tetravalency

Q. The ability of a carbon atom to link with other carbon atoms is known as tetravalency.

1. True
2. False

Q. The products obtained after the complete combustion of methane are ______ and ______.

1. carbon dioxide, water
2. carbon monoxide, water
3. hydrogen, oxygen
4. oxygen, nitrogen dioxide

Q.

Give an equation to show burning of diamonds.

Q. The action of cleaning of oily dirt by soap depends on

1. hydrophobic property
2. solubility in water
3. micelle formation
4. hydrophillic property

Q. On placing a glass sheet above a burning kerosene lamp, Naina observed a black coloured substance being formed on it as shown below. This black coloured substance is ______.

1. lampblack
2. plant charcoal
3. activated charcoal
4. coal

Q. Which of the following properties aid catenation in carbon?

1. Small size
2. Allotropy
3. Tetravalency
4. Non-metallic nature of carbon

Q. The property of carbon by which it bonds with other carbon atoms to form long chains is known as .

1. catenation
2. tetravalency
3. polarity

Q. Carbon dioxide is a linearly shaped molecule.

1. False
2. True

Q. What is the colour of methane gas at room temperature?

1. Green
2. Colourless
3. Red
4. Yellow

Q.

The functional group of ethanol and ethanal respectively are:

1. -OH and -C=O

2. -OH and -CHO

3. -C=O and -CHO

4. -CHO and -C=O

Q. The structure of $S_8$ molecule resembles the shape of a crown.

1. True
2. False

Q. The ability of atoms of an element to combine among themselves to form long chains is called _________.

1. catenation
2. allotropy
3. tetravalency
4. isomerism

Q.

Biogas mainly consists of:

1. ethane

2. methane

3. propane

4. butane