Covalent Bonding in Carbon

Q.

What do the first ten elements entail?

Q.

What is the valency of xenon

Q.

In the compound PCl5 phosphorus has 10 valence electrons. Please explain this.

Q. The number of valence electrons present in a carbon atom is .

1. 2
2. 4
3. 3
4. 5

Q.

The symbol of Fluorine is:

Q. (a)
Draw the electron dot structure for: ​(a) ethanoic acid

(b)
Draw the electron dot structure for:
$H_{2}S$

(c)
Draw the electron dot structure for:
propanone

(d)
Draw the electron dot structure for:
$F_2$

Q.

The major constituent of biogas is

1. Methane

2. Benzene

3. Propane

4. Acetylene

Q.

Electrons left in the valence shell when Xe is converted to XeF₆ are___

Q. The total number of covalent bonds in one molecule of butane are ________.

1. ten
2. eleven
3. thirteen
4. six

Q.

Name the following:

The mixture of methane, carbon dioxide, and other gases used as fuel

Q. A carbon atom shares four electrons to complete its octet.

1. True
2. False

Q. The maximum number of hydrogen atoms required to attain the octet configuration by the carbon is .

1. 6
2. 3
3. 4
4. 5

Q.

What are some fun facts about biomass?

Q.

Methane is a major constituent of

1. Coal gas

2. Water gas

3. Petroleum

4. Biogas

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

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

Q.

Arrange the following in the ascending order of the number of covalent bonds present in them.

(a) ${\mathrm{N}}_2$

(b) ${\mathrm{O}}_2$

(c) ${\mathrm{H}}_2$

(d) ${\mathrm{CO}}_2$

1. abcd

2. dabc

3. bcda

4. cbad

Q. A carbon atom shares four electrons to complete its octet.

1. False
2. True

Q. If $E_n$ is the energy required to remove the $n^{th}$ electron form the outer most shell of carbon then decreasing order of the energies is:

1. $E_4$
2. $E_3$
3. $E_2$
4. $E_1$

Q.

Carbon has........... electrons in its valence shell.

Q.

The major constituent of biogas is

1. Propane

2. Acetylene

3. Methane

4. Benzene

Q. A carbon atom four electrons to complete its octet.

1. gains
2. loses
3. shares

Q. How many carbon atoms are present in one molecule of butene?

1. Five
2. Four
3. Six
4. Three

Q. A carbon atom shares four electrons to complete its octet.

1. True
2. False

Q. Carbon dioxide is a linearly shaped molecule.

1. False
2. True

Q. The total number of covalent bonds in one molecule of butane are ________.

1. 9
2. 10
3. 6
4. 8

Q.

The major constituent of natural gas is:

1. butane

2. methane

3. propane

4. ethane

Q. Emperical formula of butane is $C_2{H}_5$.

1. True
2. False

Q. A carbon atom shares four electrons to complete its octet.

1. True
2. False

Q. Name the constituents of biogas.

Q.

Methane is a major constituent of

1. Coal gas

2. Petroleum

3. Biogas

4. Water gas