Which of the following statements is NOT correct?

• A. The average kinetic energy of a gas is directly proportional to its temperature
• B. At constant tempearture, the volume of a gas increases as the pressure increases
• C. The pressure of a gas is inversely proportional to its volume
• D. The temperature of a gas is directly proportional to its volume

The ion that can be used as an oxidizing agent is

• A. Au₃₊
• B. Fe₃₊
• C. ClO_-
• D. Ca₂₊

The process of converting starch to ethanol is

• A) cracking
• B) distillation
• C) fermentation
• D) oxidation

If 6.5g of magnesium ribbon reacts completely with Hydrochloric acid, how many grams of hydrogen gas would be liberated? Mg(s) + 2HCl(aq) --> MgCl₂(aq) + H₂(g) [ H = 1.0, Mg = 24.0 ]

• A. 0.54g
• B. 0.70g
• C. 1.08g
• D. 1.40g

What current in amperes will deposit 2.7g of aluminium in 2 hours? [Al = 27, F = 96 500 C mol-1]

• A. 32
• B. 8
• C. 4
• D. 16

When excess carbon (lV) oxide is passed into lime water, the turbidity produced initially disappears due to the formation of

• A. calcium oxide
• B. calcium carbide
• C. calcium hydrogentrioxocarbonate (IV)
• D. trioxocarbonate (IV) acid

Catalytic hydrogenation of benzene produces

• A. Oil
• B. Cyclohexene
• C. Cyclohexane
• D. Margarine

The main characteristic features of transition metals are that they

• A) Have the same atomic size
• B) Are reducing agents
• C) Forms ions easily
• D) Have variable oxidation states

An acid present in proteins is?

• A. lactic acid.
• B. amino acid.
• C. propanoic acid
• D. palmitic acid.

The vapour density of an organic compound with the molecular formula \(C_2H_4O_2\), is

[H=1.0, C=12.0, O= 16.0]

• A. 40
• B. 120
• C. 65
• D. 30