Temperature and Rate of Reaction

Q.

One of the factors which do not affect the rate of the reaction is temperature.

1. True

2. False

Q. Certain bimolecular reactions which follow first order kinetics are called

1. Bimolecular reaction s
2. First order reaction
3. Pseudo unimolecular reactions
4. Unimolecular reactions

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?

1. The concentration of the reactants.

2. The pressure on the reactants.

3. The temperature of the reactants.

4. The presence of light.

Q. The rate of a reaction , when the temperature is increased.

1. increases
2. decreases
3. remains same

Q.

Four test tubes with ice, cold water, normal water, and hot water were taken. A piece of magnesium metal was dropped in each of these test tubes. In which test tube the reaction will be faster and vigorous?

1. Test tube with ice
2. Test tube with normal water
3. Test tube with hot water
4. Test tube with cold water

Q.

Choose the correct option regarding the statements given below:

Statement 1: On increasing the temperature of a reaction, the effective collision of molecules increases.

Statement 2: Temperature increase the number of molecules with the threshold energy.

1. Statement (i) is incorrect but statement (ii) is correct

2. Statement (i) is correct and statement (ii) is incorrect

3. Both statements are correct and statement (ii) is the reason for statement (i)

4. Both statements are correct and statement (ii) is not the reason for statement (i)

Q.

A piece of potassium metal is taken in two test tubes having cold water and hot water. The rate of the reaction will be maximum in the test tube with hot water.

1. False

2. True