T2V T5 C4 Rate of Reaction

Which of the following processes has the highest rate of reaction?

• Photosynthesis in plants

• Burning of charcoal

• Rusting of iron pipe

• Fermentation of rice

Which of the following represents Reaction J and Reaction K?

• Burning matches, Melting

• Rusting of nails, Burning matches

• Photosynthesis, Burning matches

• Rusting of nails, Photosynthesis

When magnesium reacts with hydrochloric acid, 45 cm3 of hydrogen gas is released within a minute. What is the average rate of reaction?

• 0.45 cm3 s-1

• 0.50 cm3 s-1

• 0.75 cm3 s-1

• 0.80 cm3 s-1

Which part A, B, C or D, shows the highest rate of reaction?

What is the method to increase the rate of reaction?

• Reduce the temperature of the reaction

• Reduce the pressure of the reaction

• Reduce the size of the reactants

• Reduce the concentration of the reactants

Which of the following factors affects the rate of reaction of a substance?

• Mass

• Volume

• Concentration

• Density

What is the action can be done to increase the rate of reaction for this experiment?

• Use a larger container

• Increase the concentration of hydrochloric acid

• Add hot water to the hydrochloric acid

• Use the bigger size of calcium carbonate

Based on Table 1, what is the average rate of reaction for the whole reaction?

• 0.25 cm3s-1

• 0.33 cm3s-1

• 0.80 cm3s-1

• 1.68 cm3s-1

What is the ratio of nitrogen to hydrogen required in the Haber Process?

• 1 : 2

• 1 : 3

• 1 : 4

• 1 : 5

What is the purpose of using vanadium (v) oxide used in the Contact Process?

• To increase the rate of reaction

• To lower the temperature

• To increase the pressure

• To increase the time of reaction