Single, Double and Triple Bonds and Their Strengths

Q.

Covalent bonded are seen to have strong bonds within the next molecule, but intermolecular forces are small. Why?

Q.

Which of the following has the weakest carbon-carbon bond strength?

1. $C_2{H}_2$

2. $C_2{H}_4$

3. $C_2{H}_6$

4. $C_2{H}_8$

Q.

A covalent molecule having a double bond between its atoms is:
(a) Hydrogen (b) Oxygen (c) Water (d) ammonia

Q. Saturated hydrocarbons are more stable than unsaturated hydrocarbons since they have only ____________ between them.

1. triple bonds
2. single bonds
3. ionic bond
4. double bonds

Q. Name a compound of each type and draw the figure. [2 MARKS]
(a) Cyclic compound with single bond.
(b) Cyclic compound with triple bond.

Q. Why are organic compounds studied as a separate branch of chemistry? [5 MARKS]

Q.

What do we mean by that covalent compound are made up of molecules?

Q.

The molecules having triple bond in them are:

(a) Oxygen and ethyne

(b) carbon dioxide and ammonia

(c) Methane and ethene

(d) Nitrogen and ethyne

Q. The energy required to break all the bonds in ethene is ethyne.

1. More than
2. Less than
3. Equal to

Q.

Define chemical bond.

Q. Saturated hydrocarbons are more stable than unsaturated hydrocarbons since they have only ____________ between them.

1. double bonds
2. triple bonds
3. single bonds
4. van der Waals forces

Q. Identify the most stable compound from the following.

1. Butene
2. Propyne
3. Butyne
4. Butane

Q.

Which of the following has the weakest carbon-carbon bond strength?

1. $C_2{H}_4$

2. $C_2{H}_2$

3. $C_2{H}_6$

4. $C_2{H}_8$

Q.

Arrange single, double and triple bonds in decreasing order of their strengths.

1. Double bond > Single bond > Triple bond

2. Triple bond < Double bond < Single bond

3. Triple bond = Single bond = Double bond

4. Triple bond > Double bond > Single bond

Q.

c=c-c, here only one double bond can exist between 3 carbon atoms or c=c-c-c , here too only one double bond .why not like this c=c=c or c=c=c-c

Q. Question 15
Pentane has the molecular formula ${\text{C}}_5{\text{H}}_{12}$. It has
(a) 5 covalent bonds
(b) 12 covalent bonds
(c) 16 covalent bonds
(d) 17 covalent bonds

Q. The energy required to break all the bonds in ethene is ethyne.

1. Less than
2. Equal to
3. More than

Q. The energy required to break all the bonds in ethene is ethyne.

1. Equal to
2. More than
3. Less than

Q. The energy required to break all the bonds in ethene is ethyne.

1. More than
2. Less than
3. Equal to

Q. The energy required to break all the bonds in ethene is ethyne.

1. More than
2. Less than
3. Equal to

Q.

Arrange single, double and triple bonds in decreasing order of their strengths.

1. Double bond > Single bond > Triple bond

2. Triple bond < Double bond < Single bond

3. Triple bond = Single bond = Double bond

4. Triple bond > Double bond > Single bond

Q. The energy required to break all the bonds in ethene is ethyne.

1. More than
2. Equal to
3. Less than

Q. The energy required to break all the bonds in ethene is ethyne.

1. Less than
2. More than
3. Equal to

Q.

Ethene decolorizes _ water.

Q.

Which of the following has the weakest carbon-carbon bond strength?

1. $C_2{H}_6$

2. $C_2{H}_4$

3. $C_2{H}_2$

4. $C_2{H}_8$

Q. Which of the following compounds have a ring-carbon chain structure?

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

Q. Saturated hydrocarbons are more stable than unsaturated hydrocarbons since they have only ____________ between them.

1. double bonds
2. single bonds
3. van der Waals forces
4. triple bonds

Q. Choose the correct statement out of the following.

1. Carbon can gain, lose or share electrons to form bonds.
2. Catenation is the property of self-linking of atoms of an element to form chains and rings.
3. Carbon can form single, double or triple ionic bonds in its compounds.
4. Carbon atoms are trivalent.