Assertion :- A shiny white finish on the walls is obtained after two t

1.	Assertion :- A shiny white finish on the walls is obtained after two to three days of completion of white washing on the wallsReason :- CaO reacts with CO2 to form calcium hydrogen carbonate which gives shiny white wash
Answer» Answer: assertion :- A shiny white finish on the walls is obtained after two to three DAYS of COMPLETION of white washing on the walls Reason :- CaO reacts with CO2 to FORM calcium hydrogen CARBONATE which gives shiny white wash Explanation: In whitewash Calcium hydroxide is present. Calcium hydroxide reacts slowly with the carbon dioxide in air to form a thin layer of calcium carbonate on the walls. Calcium carbonate is formed after two to three days of white washing and gives a shiny finish to the walls. Both A and R are true and R is the explanation for A.

Assertion :- A shiny white finish on the walls is obtained after two to three days of completion of white washing on the wallsReason :- CaO reacts with CO2 to form calcium hydrogen carbonate which gives shiny white wash

Answer»

Answer: assertion :- A shiny white finish on the walls is obtained after two to three DAYS of COMPLETION of white washing on the walls

Reason :- CaO reacts with CO2 to FORM calcium hydrogen CARBONATE which gives shiny white wash

Explanation:

In whitewash Calcium hydroxide is present. Calcium hydroxide reacts slowly with the carbon dioxide in air to form a thin layer of calcium carbonate on the walls. Calcium carbonate is formed after two to three days of white washing and gives a shiny finish to the walls. Both A and R are true and R is the explanation for A.

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