Q. 34 A4.7( 9 Votes )

State the various characteristics of chemical reactions.

Class 10th Lakhmir Singh & Manjit Kaur - Chemistry 1. Chemical Reations and Equations

Answer :

(a) The various characteristics of chemical reaction are as follows:

(i) Effervescence of gas.

(ii) Precipitate formation.

(iii) Colour Change.

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PREVIOUSGive one example each of a chemical reaction characterised by: (i) evolution of a gas (ii) change in colour (iii) formation of a precipitate (iv) change in temperature (v) change in state.NEXTState one characteristic each of the chemical reaction which takes place when: (i) dilute hydrochloric acid is added to sodium carbonate (ii) lemon juice is added gradually to potassium permanganate solution (iii) dilute sulphuric acid is added to barium chloride solution (iv) quicklime is treated with water (v) wax is burned in the form of a candle

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Lakhmir Singh & Manjit Kaur - Chemistry

Which of the following does not involve a chemical reaction?Lakhmir Singh & Manjit Kaur - Chemistry