Shan was observing a construction work in his neighbourhood. Labourers were whitewashing the walls. He also, noticed that a man

Shan was observing a construction work in his neighbourhood. Labourers were whitewashing the walls. He also, noticed that a man was painting the Iron railing and door latches. It remained Shan such of a chemical reaction,
a. Which type of reaction is involved in whitewashing?b. The wall becomes Shans after whitewashing. Why?c. Which reaction would have come to Shans mind when he saw Iran railing and door latches beingpainted?d. What is the associated life skill?​

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