Which of the following will result in a chemical change?
(a) mixing salt and water
(b) heating candle wax
(c) adding curd to milk
(d) adding water to milk

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Solution

(b) heating candle wax

Because heating of candle wax converts solid wax into liquid water and gaseous carbon dioxide. So, this chemical reaction is characterised by change in physical state.

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Which of the following will result in a chemical change? (a) mixing salt and water (b) heating candle wax (c) adding curd to milk (d) adding water to milk

(b) heating candle wax Because heating of candle wax converts solid wax into liquid water and gaseous carbon dioxide. So, this chemical reaction is characterised by change in physical state.

Which of the following will result in a chemical change?
(a) mixing salt and water
(b) heating candle wax
(c) adding curd to milk
(d) adding water to milk

(b) heating candle wax

Because heating of candle wax converts solid wax into liquid water and gaseous carbon dioxide. So, this chemical reaction is characterised by change in physical state.