Why Carbon Can Form so Many Compounds

Q.

Why can't two carbons form 4 bonds?

Q.

What are the two properties of carbon which lead to the huge number of carbon compounds we see around us?

Q.

What is a homologous series? Explain with an example.

Q.

The ability of carbon atom to link with another carbon atoms to form long carbon chains is known as __.

Q.

(a) Why does the element carbon from a large number of carbon compounds?
(b) Write down the structures and names of two isomers of butane ($C_4{H}_{10}$)

Q. Explain the following : (a) tetravalency (b) catenation. [4 MARKS]

Q.

How are covalent bonds formed?

Q. Carbon has a valency of four. It is capable of forming single bonds with four other carbon atoms or atoms of some other monovalent element, etc. What is this property of carbon known as?

1. Tetravalency
2. Catenation
3. Metallic Bonding
4. Ionic Bonding

Q.

Are covalent bonds easily broken?

Q.

Which properties of carbon make it a versatile element? Discuss its bonding in saturated and unsaturated hydrocarbon.

Q.

Define the following terms with examples: Tetravalent

Q.

Why do carbon form chains? And why carbon compounds are called organic compounds?

Q.

What are the combined states of carbon?

Q. Can carbon form two double bonds by sharing two pairs of electrons?^{​​​​​​}

Q.

(a) What is the atomic number of carbon? Write its electronic configuration.
(b) What type of chemical bonds are formed by carbon? Why?
(c) Name the three allotropic forms of carbon.

Q.

Carbon a member of group 14 forms a large no. of carbon compounds estimated to be about three million. Why is this property not exhibited by other elements of this group? Explain

Q. What is a condensed structural formula? How do you draw or write them?

Q.

Why does Carbon form a strong bond with other Carbon atoms or atoms of other elements?

Q. what are the steps to draw isomers of a carbon compound.

Q. How many double covalent bonds can a single carbon atom form at a time?

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

Q.

Catenation is self linking property of__________ .

1. Oxygen

2. Helium

3. Carbon

4. Nitrogen

Q.

Give an example of an element or an atom that does not show catenation.

Q. Which amongst the following properties of carbon is shown by silicon as well?

1. Valency of four
2. Ability to form large molecules
3. Small size of the atom
4. Formation of ring compounds

Q.

Choose the correct option.

1. Carbon has 2 valence electrons

2. Carbon has 6 valence electrons

3. Carbon has 4 valence electrons

4. Carbon has 8 valence electrons

Q.

Why is carbon dioxide a compound?

Q.

Give an example of an element that forms an electron-deficient compound.

Q.

1. True
2. False

Q. How many double covalent bonds can a single carbon atom form at a time?

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

Q.

Why does Carbon form largest number of compounds?

Q. Taking the example of an element of atomic number 16, explain how the electronic configuration of the atom of an element relates to its position in the modern periodic table and how valency of an element is calculated on the basis of its atomic number.