Isotopes of Carbon

Q.

Draw the possible isomers of the compound with the molecular formula ${\mathrm{C}}_3{\mathrm{H}}_6\mathrm{O}$ and also give their electron dot structures.

Q.

Why is Carbon-12 used in AMU?

Q.

How many positional isomers are there in ${\mathrm{C}}_5{\mathrm{H}}_{11}\mathrm{Br}$?

Q.

n-butane and iso-butane are

1. Alkenes

2. Isomers

3. Alcohol

4. Alkynes

Q.

Which isotope of carbon is used for determining the age of fossils?

1. Graphite

2. Carbon-14

3. Carbon-12

4. Fullerence

Q.

Structural isomerism in a saturated hydrocarbon is due to

1. change in the valency of carbon.

2. formation of branches in the chain of C atoms.

3. change in the ratio of elements in compounds.

4. formation of double bond.

Q.

Structural isomerism is possible only with saturated hydrocarbons having ___ or more carbon atoms.

1. 4

2. 2

3. 3

4. 1

Q.

Is carbon $12$ an isotope?

Q.

The number of possible structural isomers of $C_6{H}_{14}$ is _____.

1. 3

2. 4

3. 5

4. 6

Q.

Which of the following options is not an isotope of carbon?

1. Carbon-11

2. Carbon-12

3. Carbon-13

4. Carbon-14

Q.

Which of the following are examples of Radio-isotopes?

1. Carbon-14

2. Tritium

3. Carbon-12

4. Deuterium

Q. what is isotopes

Q. Cyclohexane and Benzene are

1. metamers
2. isomers
3. cyclic
4. polymers

Q.

How many structural isomers of butane are possible?

1. 1

2. 0

3. 3

4. 2

Q.

The compound having the molecular formula $C_4{H}_{10}$ does not show isomerism.

1. True

2. False

Q. Which of the following is an isomeric pair?

1. Ethane and propane
2. butane and 2-ethylpropane
3. butane and 2-methylpropane
4. propane and 1-methylbutane

Q.

The organic compounds having the same molecular formula but different structures are known as ..........

1. Isomers

2. Isotopes

3. Isotones

4. Isobars

Q. Structural isomers are compounds with same molecular formula and different structures but the same number of carbon atoms are present in the parent chain.

1. True
2. False

Q.

Isomers have same molecular formula but different .............. formula.

1. Structural

2. Carbon

3. Molecular

4. Electronic

Q. A hydrocarbon with three carbon atoms cannot form a branched compound.

1. True
2. False