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Chemistry Past Questions and Answers

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Chemistry Questions

Question 2851:

Which of the following factors does not affect the rate of reaction of CaCO<sub style='font-size: smaller;'>3</sub> with HCI?

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A Temperature of the reaction
B Solubility of the CaCO<sub style='font-size: smaller;'>3</sub>
C Concentration of the HCI
D Surface area of the CaCO<sub style='font-size: smaller;'>3</sub>

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Question 2852:

When X is heated with manganese (IV) oxide, oxygen is produced X is

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A KCI
B KCIO<sub style='font-size: smaller;'>3</sub>
C CaCO<sub style='font-size: smaller;'>3</sub>
D ZnCO<sub style='font-size: smaller;'>3</sub>

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Question 2853:

Which of the following statements is not a postulate of the kinetic theory of gases?

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A Molecules move with the same speed
B Intermolecular forces are negligible
C Molecules are in a state of constant random motion
D Collision between molecules is elastic

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Question 2854:

HNO<sub style='font-size: smaller;'>3</sub> does not usually react with metals to liberate hydrogen because HNO<sub style='font-size: smaller;'>3</sub> is

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A A strong acid
B A corrosive acid
C An oxidizing agent
D A nitrating agent

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Question 2855:

Which of the following is not an acid anhydride?

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A P <sub style='font-size: smaller;'>2</sub>O <sub style='font-size: smaller;'>5</sub>
B NO <sub style='font-size: smaller;'>2</sub>
C SO <sub style='font-size: smaller;'>2</sub>
D CO

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