Covalent bonds can be single, double or triple covalent bonds. How many electrons are shared in each? Give an example of each type.

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Solution

Covalent bonds

Shared electrons

Example

Single covalent bonds

By sharing one pair of electrons between the atoms.

H₂

Double covalent bonds

By sharing two pairs of electrons between two atoms.

O₂

Triple covalent bonds

Sharing of three pairs of electrons between two atoms.

N₂

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(1) The organic compounds having double or triple bond in them are termed as _______

(2) The general formula of alkanes is _______

(3) _______ are known as parent organic compounds.

(4) Covalent compounds are generally soluble in _______ solvents.

(5) Triple bond can be obtained by sharing _______ pairs or _______ electrons.

(6) Hydrocarbons necessarily contain _______ and _______.

How many covalent bonds are present in N₂ molecule?

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Covalent bonds	Shared electrons	Example
Single covalent bonds	By sharing one pair of electrons between the atoms.	H₂
Double covalent bonds	By sharing two pairs of electrons between two atoms.	O₂
Triple covalent bonds	Sharing of three pairs of electrons between two atoms.	N₂