Analyze the diagram below:

The rate of the reaction in a test tube B is greater than the rate of the reaction in a test tube A. Which of the following factor could probably be the main reason for this?

The concentration of the reactants.

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The pressure on the reactants

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The temperature of the reactants

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The presence of light

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Solution

The correct option is C The temperature of the reactants
Few factors which affect the rate of the reaction are:

The concentration of the reactants

The nature of the reactants

The surface area of the solid reactants

The temperature of the reaction

Presence of a catalyst and light

All the other factors are same for the given test tubes, except that test tube 2 contains hot solution. The energy and speed of the molecules of reactants increases as the temperature increases. Hence, the rate of the reaction increases. Therefore, temperature is responsible for higher rate of reaction.

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Similar questions

Q. Identify the correct sequence of steps in an experiment to show the effect of temperature on the rate of the reaction.
(a) Measuring the volumes of

H_{2}

gas liberated in two test tubes.
(b) Heating the test tube B by

10^{\circ} C

.
(c) Comparison of relative volumes of

H_{2}

liberated in test tubes B and A.
(d) Addition of same concentration of

H C l

to the two test tubes.
(e) Taking equal masses of fine granules of zinc in two test tubes A and B.

Which of the following statements is correct ?
(a) The rate of reaction decreases with passage of time as the concentration of reactants decreases
(b) The rate of reaction is same at any time during the reaction
(c) The rate of a reaction is independent of temperature change
(d) The rate of a reaction decreases with increase in concentration of reactant (s)

Q. Analyze the diagram below:

The rate of the reaction in a test tube B is greater than the rate of the reaction in a test tube A. Which of the following factor could probably be the main reason for this?

Identify the correct sequence of steps in an experiment to show the effect of temperature on the rate of the reaction.

(1) Measuring the volumes of $H_{2}$ gas liberated in the two test tubes.

(2) Heating the test tube B by $10 ° C$ .

(3) Comparison of relative volumes of $H_{2}$ liberated in test tubes B and A.

(4) Addition of same concentration of $H C l$ to the two test tubes.

(5) Taking equal masses of fine granules of zinc in two test tubes A and B.

A student working in a laboratory added some water to a syrupy liquid taken in a test tube. The test tube immediately cracked and the liquid escaped out. This liquid on reaction with the student's skin caused blisters. What can be the possible reason for this reaction?

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