Write down the formulae of
(i) Sodium oxide
(ii) Aluminium chloride
(iii) Sodium sulfide
(iv) Magnesium hydroxide.

 The formulae are

(i) Formula of Sodium oxide

Symbol - Na       O

Charge - +1        -2

Formula - Na₂O.

(ii)  Formula of aluminium chloride

Symbol- Al      S

Charge -  +3      -1

Formula -    AlCl₃

(iii) Formula of Sodium oxide

Symbol - Na         S

Charge - +1          -2

Formula - Na₂S

(iv) Formula of Magnesium hydroxide

Symbol -  Mg      OH

Charge -+2            1  

Formula - Mg(OH)_2.

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Updated on: 14-Mar-2023

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