When wax is burnt (in the form of a wax candle), then water and carbon dioxide are formed.This shows the "change in state" characteristic of reactions. State true or false.

True

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False

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Solution

The correct option is A True
Wax is a liquid whereas carbon dioxide is a gas. This means that during the combustion reaction of wax, the physical state changes from solid to liquid and gas. Therefore, this shows "change in state" characteristic of reactions.

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Similar questions

When wax is burnt (in the form of a wax candle), then water and carbon dioxide are formed. This shows the "change in state" characteristic of reactions. State true or false.

Q. Which of the following happens when a wax candle is burnt?
A. Wax undergoes oxidation.
B. Heat and light energy are released.
C. Water vapour and carbon dioxide are released.

Q. Assertion :The burning of a candle is both a physical and a chemical change. Reason: Burning of candle melts the wax and hence physical state of wax has changed from solid to liquid. Again the wax combines with the atmosphere oxygen and changes to carbon dioxide, heat and light.

(a) State the various characteristics of chemical reactions.

(b) State 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 chlorid solution

(iv) quicklime is treated with water

(v) wax is burned in the form of a candle

Q. State the characteristic of chemical reaction which takes place when:
1) Lead reacts with KI
2) Zinc reacts with HCI
3) Reaction of candle wax

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When wax is burnt (in the form of a wax candle), then water and carbon dioxide are formed.This shows the "change in state" characteristic of reactions. State true or false.

The correct option is A TrueWax is a liquid whereas carbon dioxide is a gas. This means that during the combustion reaction of wax, the physical state changes from solid to liquid and gas. Therefore, this shows "change in state" characteristic of reactions.

The correct option is A True
Wax is a liquid whereas carbon dioxide is a gas. This means that during the combustion reaction of wax, the physical state changes from solid to liquid and gas. Therefore, this shows "change in state" characteristic of reactions.