Assertion: After white washing the walls, a shiny white finish on walls is
obtained after two to three days.
Reason: Calcium Oxide reacts with Carbon dioxide to form Calcium
Hydrogen Carbonate which gives shiny white finish.
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Assertion: After white washing the walls, a shiny white finish on walls is obtained after two to three days. Reason: Calcium Oxide reacts with Carbon dioxide to form Calcium Hydrogen Carbonate which gives shiny white finish. 15. Assertion: Food chain is responsible for the entry of harmful chemicals in our bodies.
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(c) A is true but r is false
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