Chapter 3

NCERT
Class 9
Science
Solutions
1. Write down the formula of
Promo GIF

Question:

Write down the formula of

(a)Sodium oxide

(b)Aluminium chloride

(c)Sodium sulphide

(d)Magnesium hydroxide

Answer:

(a) Sodium oxide - Na2O

(b) Aluminium chloride - AlCl3

(c) Sodium sulphide - Na2S

(d) Magnesium hydroxide - Mg(OH)2

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