Question

Give  scientific  reason:
Grills  of  doors  and  windows  are  always
painted  before  they  are  used

MSCERT Class 10 General Science Ch2 The Magic of Chemical Reactions

Answer 1

Grills of doors and windows are always painted before they are used because of to protect from rusting.

Answer 2

Grills of doors and windows are always painted before they are used in order to prevent rusting they cut off the contact of moisture with the grills hence prevent them from rusting