Which of the following properties does not give evidence of the kinetic theory of matter?

• A. Diffusion
• B. Melting
• C. Polymerization
• D. Evaporation

Which of the following raw materials is used in the plastic industry?

• A. Ethene
• B. Methane
• C. Sulphur
• D. Hydrogen

When water was added to a white anhydrous substance X, the colour changed to blue. X is

• A. CuSO₄
• B. FeSO₄
• C. Na₂SO₄
• D. PbSO₄

Which of the following is not allotrope of carbon?

• A) diamond
• B) graphite
• C) buck minsterfullerene
• D) none of the above

The complete combustion of one mole of an alkanol is shown below:

\(C_nH_{2n+1}CHO + xO_2 \rightarrow yCO_2 + 2H_2O\)

What is the value of \(x\) in terms of \(n\)?

• A)
  \(\cfrac{3n + 1}{2}\)
• B)
  \(\cfrac{3n - 1}{2}\)
• C)
  \(\cfrac{3n}{2}\)
• D)
  \(\cfrac{3n + 3}{2}\)

Which of the following gases is used to retard the vaporization of the filament in a light bulb?

• A. Argon
• B. Helium
• C. Hydrogen
• D. Oxygen

When sulphur (IV) oxide is passed into a solution of sodium hydroxide for a long time, it eventually produces a solution of

• A. NaHSO₄
• B. Na₂SO₃
• C. NaHSO₃
• D. Na₂SO₄

The volume occupied by a given mass of gas depends on its

• A. diffusion rate
• B. temperature and pressure
• C. degree of solubility
• D. relative density

Which quantum number divides shells into orbitals?

• A) principal
• B) azimuthally
• C) magnetic
• D) spin

The real harmful effect of the release of chlorofluorocarbons into the atmosphere is that it eventually causes

• A. excessive ultraviolet light from the sun to reach the earth surface
• B. excessive release of infrared light from the sun to the earth surface
• C. corrosive effect of the chemicals on humans and animals
• D. acidic effect of chemicals on humans