Which of the following is a chemical change?
(a) the making of idlis
(b) grinding rice
(c) powdering of sugar crystals
(d) breaking of a window pane

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Solution

(a) the making of idlis
All other processes are physical change. Making of idlis involves chemical reaction of food ingredients.

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Which of the following is a chemical change? (a) the making of idlis (b) grinding rice (c) powdering of sugar crystals (d) breaking of a window pane

(a) the making of idlisAll other processes are physical change. Making of idlis involves chemical reaction of food ingredients.

Which of the following is a chemical change?
(a) the making of idlis
(b) grinding rice
(c) powdering of sugar crystals
(d) breaking of a window pane

(a) the making of idlis
All other processes are physical change. Making of idlis involves chemical reaction of food ingredients.