Question

what is the difference between
i) lone pair and shared pair of electrons
ii) single covalent bond and triple covalent bond

Answer 1

Lone pair is the electron pair that the central atom posses even after forming covalent bond to attain octet. For eg NH3 nitrogen has a lone pair when it donates the lone pair to another H+ ion then it forms covalent bond. Shared pair are the electrons shared to attain octet

2) when the atoms share one electron each then it forms single covalent bond like c-h bond in CH4, when they share 3 eletrons each then they form triple covalent bond eg N2

Answer 2

Explanation:

In chemistry, a lone pair refers to a pair of valence electrons that are not shared with another atom in a covalent bond and is sometimes called an unshared pair or non-bonding pair. ... Electron pairs are therefore considered lone pairs if two electrons are paired but are not used in chemical bonding.

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