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Chemistry Past Questions and Answers

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Chemistry Questions

Question 2606:

What is the shape of a molecule of CCI<sub style='font-size: smaller;'>4</sub>?

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A Pyramidal
B Tetrahedral
C Trigonal planar
D Linear

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Question 2607:

Which of the following increases as boiling water changes to steam?

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A Temperature of the system
B Degree of disorder in the system
C Number of molecules
D Activation energy

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Question 2608:

9.60 g of a gas X occupies the same volume at 0.30 g of hydrogen under the same conditions. Calculate the molar mass of X [H = 1]

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A 8g mol <sup style='font-size: smaller;'>-1</sup>
B 16 gmol <sup style='font-size: smaller;'>-1</sup>
C 32g mol <sup style='font-size: smaller;'>-1</sup>
D 64g mol <sup style='font-size: smaller;'>-1</sup>

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Question 2609:

Which of the following gases is colourless, odourless and soluble in potassium hydroxide solution?

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A NO <sub style='font-size: smaller;'>2</sub>
B SO <sub style='font-size: smaller;'>2</sub>
C NH <sub style='font-size: smaller;'>2</sub>
D CO<sub style='font-size: smaller;'>3</sub>

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Question 2610:

The gas evolved when dilute tetraoxosulphate (VI) acid reacts with sodium hydrogen trioxocarbonate (IV) is

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A Hydrogen
B Oxygen
C Carbon (IV) oxide
D Sulphur (VI) oxide

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