Allotropy in Carbon

Q.

Coal is amorphous carbon.

1. True
2. False

Q. All the compounds given below are allotropes of carbon except ________.

1. graphite
2. fullerene
3. diamond
4. carbon dioxide

Q. Among the following substances, has free electrons to conduct electricity.

1. Carbon monoxide
2. Graphite
3. Coal
4. Diamond

Q. Identify the allotropes of carbon among the following.

1. cobalt
2. Graphite
3. Coal
4. C-14

Q. Differentiate between the crystalline form of carbon and the non-crystalline form of carbon.
[2 Marks]

Q.

Different allotropic forms of carbon is\are:

1. True

2. False

3. Buckminster fullerene

4. Only graphite

Q.

what is " allotrop of carbon" mean?

Q. is the property of an element by which it exists in different forms.

1. Allotropy
2. Catenation
3. Tetravalency

Q. All the compounds given below are allotropes of carbon except ________.

1. graphite
2. carbon dioxide
3. fullerene
4. diamond

Q. The word root for a hydrocarbon with three carbon atoms is ________.

1. prop
2. meth
3. eth
4. but

Q.

Which of the following are the allotropes of carbon?

1. Carbon dioxide

2. Diamond

3. Carbon monoxide

4. Graphite

Q. Statement 1: Coal and coke are examples of crystalline forms of carbon.

Statement 2: Graphite and diamonds are examples of non-crystalline forms of carbon.

1. Statement 1 is true and statement 2 is false.
2. Statement 1 is false and statement 2 is true.
3. Both statements 1 and 2 are false.
4. Both statements 1 and 2 are true.

Q.

The phenomenon of occurrence of same element in different physical forms is known as ___________.

1. allotropy

2. tetravalency

3. isotopes

4. catenation

Q. Which amongst the following is not an allotrope of carbon?

1. Carbon dioxide
2. Fullerene
3. Diamond
4. Graphite

Q. Which of the following statements are true regarding allotropes of carbon?

1. Graphite is extremely harder than diamond.
2. Graphite has higher electrical conductivity than diamond.
3. Graphite has higher thermal conductivity than diamond.
4. Graphite has lower density than diamond.

Q. Which amongst the following forms of carbon is known as bucky ball?

1. Diamond
2. Graphite
3. Fullerene
4. Coal