Catenation

Q. Which of the following elements are liquids at room temperature?

1. Bromine (Br)
2. Mercury (Hg)
3. Helium (He)
4. Carbon (C)

Q. What is an Allotrope?

Q. What is catenation? Why carbon show maximum tendency of catenation?

Q.

Why does only carbon show catenation. ? Hydrogen, lithium, boron, beryllium also have very small size atoms even smaller than the carbon atom. But still, only carbon show catenation because it is able to create a very strong bond with other atoms. Why don't hydrogen, boron, beryllium, lithium creates such strong bonds since their atom's size is very very small ??

Q. Define the term catenation.

Q.

(a) What is the unique property of carbon atom? How is this property helpful to us?
(b) Explain why diamond is hard while graphite is soft (though both are made of carbon atoms).

Q. What is the versatile Nature of carbon? Explain.

Q.

Carbon has the unique ability to form bonds with other atoms of carbon, giving rise to large molecules. What is this property of Carbon called as?

1. Organic Chemistry

2. Covalent Bonding

3. Tetravalency

4. Catenation

Q.

WHy carbon is versatile in nature

Q. ​​​Why does Sulphur exist as s8 usually, not s2? Won't it be much hassle free and involve only two atoms?
Please may I simplified answer as we have not studied much about sigma or pi

Q.

Which of the following are allotropes of carbon?

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

1. All four are allotropes of carbon.

2. Only 2 and 4 are allotropes of carbon.

3. Only 1 and 2 are allotropes of carbon.

4. Only 1 and 3 are allotropes of carbon.

Q. Why carbon can't form 4 bonds with another carbon?

Q.

What are the two properties of carbon which lead to the formation of a large number of carbon compounds?

Q.

What is the tetravalency of carbon?

Q. Why only carbon has unique features that other elements don't?

Q.

The pair of elements which exhibits the property of catenation is :
(a) sodium and silicon (b) chlorine and carbon (c) carbon and sodium (d) silicon and carbon

Q. The ability of carbon to form bonds with other atoms of carbon, giving rise to large molecules is called

1. Covalent Bonding
2. Organic Chemistry
3. Tetravalancy
4. Catenation

Q.

Why does carbon form covalent bonds?

Q.

Carbon has the ability to form covalent bonds with other atoms of carbon giving rise to a large number of molecules through a self-linking property. This property is called ___.

1. Isomerism

2. Tetravalency

3. Catenation

4. Saturation

Q.

(a) What is meant by catenation? Name two elements which exhibit the property of catenation.
(b) Write the names and structural formulae of all the possible isomers of hexane.

Q.

1. Shortcut to remember periodic table.

Q.

Why can't carbon form bond of 4 electrons with another carbon ?

Q.

The property of self-combination of the atoms of the same element to form long chains is known as :
(a) protonation (b) carbonation (c) coronation (d) catenation

Q.

Briefly explain the chemical properties of carbon.

Q.

The property of carbon of self combination is called:

1. Covalency

2. Catenation

3. Isomerism

4. Tetravalency

Q.

Atomicity of all the metals is one.

1. True
2. False

Q. In graphite how can each carbon be bonded with only three carbons.and called stable??

Q.

How can 3 completely different looking substances be carbon, that is, Diamond, graphite and Coal?

Q. Choose the correct statement out of the following.

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

Q. Question 2
What are the two properties of carbon which lead to the huge number of carbon compounds that we see around us?