1.

Given below are some compounds and the number of atoms of their constituent elements in each of their molecules. Write their molecular formulas. Compound Number of atoms of constituent elements Formula (a) Potassium hydroxide K:1, O:1, H:1 KOH (b) Hydrogen peroxide H:2, O:2 (c) Iron chloride Fe:1, Cl:2 (d) Ammonium chloride N:1, H:4, Cl:1 (e) Copper sulphate Cu:1, S:1, O:4 (f) Magnesium oxide Mg:1, O:1

Answer»

Given below are some compounds and the number of atoms of their constituent elements in each of their molecules. Write their molecular formulas.























































Compound



Number of atoms of constituent elements



Formula



(a)



Potassium hydroxide



K:1, O:1, H:1



KOH



(b)



Hydrogen peroxide



H:2, O:2





(c)



Iron chloride



Fe:1, Cl:2





(d)



Ammonium chloride



N:1, H:4, Cl:1





(e)



Copper sulphate



Cu:1, S:1, O:4





(f)



Magnesium oxide



Mg:1, O:1






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