English Medium इयत्ता १० - CBSE Question Bank Solutions

Give one example of the following:

A molecule containing a single covalent bond.

Give one example of the following:

A molecule containing a double covalent bond.

Give one example of the following:

A molecule containing a triple covalent bond.

Two atoms of the same element combine to form a molecule. The bond between them is known as ______ bond.

Two chlorine atoms combine to form a molecule. The bond between them is known as ______.

In forming oxygen molecule, ______ electrons are shared by each atom of oxygen.

In forming N₂ molecule, ______ electrons are shared by each atom of nitrogen.

The number of single covalent bonds in C₂H₂ molecule are ______.

The general formula C_nH_2n for cycloalkanes is the same as that of ______.

What is the atomic number of carbon. Write its electronic configuration.

What is a covalent bond?

What type of bond exists in CCl₄?

What type of chemical bonds are formed by carbon? Why?

What type of bond is present in oxygen?

What type of chemical bond is present in the chlorine molecule? Explain your answer.

Explain the formation of a chlorine molecule on the basis of electronic theory of valency.

Compare the properties of ionic compounds and covalent compounds.

Explain why:

Covalent compounds have generally low melting points.