Chemistry
Which of the following is not a non polar covalent molecule:
- Chlorine
- Methane
- Hydrogen chloride
- Carbon tetrachloride
Answer
Hydrogen chloride
Reason — The covalent bond is said to be polar when the shared pair of electrons are not at equal distance between the two atoms. This results in the development of fractional positive charge and negative charge on them and they ionise in water. For example: hydrogen chloride.
Chlorine is non-polar covalent molecule with two identical atoms share electrons equally. Methane is non-polar molecule and has symmetrical tetrahedral shape. Carbon tetrachloride is a non-polar molecule overall with symmetrical structure.
Related Questions
Ionic compounds are generally:
- Liquids
- Gases
- Liquids of very low boiling points
- Solids
An example of a double covalent bond is:
- Nitrogen molecule
- Hydrogen molecule
- Oxygen molecule
- Chlorine molecule
The total number of atoms present in a carbon tetrachloride molecule is:
- 4
- 3
- 5
- 6
Three pair of electrons are shared in a molecule of:
- Oxygen
- Hydrogen
- Methane
- Nitrogen