Which of the following acids forms normal salts only?

• A. Tetraoxosulphate (VI) acid
• B. Trioxosulphate (IV) acid
• C. Tetraoxophosphate (V) acid
• D. Trioxonitrate (V) acid

A given fuel has an octane number of 100. This means that

• A. the knocking tendency of the fuel is low
• B. the fuel is a mixture of several hydrocarbons
• C. a large amount of alkanes is present in the fuel
• D. the fuel needs to be cracked before use

In the industrial production of H2 is removed by (solution)

• A) washing under pressure
• B) drying over phosphorus (V) oxide
• C) passing the mixture to the limewater
• D) using ammonical copper (I) chlorine

How many coulombs of electricity would liberate 1.08g of Ag from a solution of silver salt?

[Ag = 108.0; 1F = 96500 C]

• A. 96500 C
• B. 9650 C
• C. 965 C
• D. 9.65 C

Which of the following statements about an electrochemical cell is correct? Oxidation occurs

• A. At the anode
• B. At the cathode
• C. Through the salt bridge
• D. In the aqueous solution

If glucose is heated with concentration tetraoxosulphate (VI) acid, it will be dehydrated to

• A) carbon
• B) carbon (IV) oxide
• C) ethene
• D) ethanol

The molecular lattice of iodine is held together by

• A) dative bond
• B) metallic bond
• C) hydrogen bond
• D) van der Waal's forces

What is the maximum volume of CO\(_2\) at s.t.p. that can be obtained when dilute hydrochloric acid is added to 10 grams of CaCO\(_3\)? [Ca = 40, C = 12, O = 16]

• A)
  2.24dm\(^3\)
• B)
  22.4dm\(^3\)
• C)
  0.224dm\(^3\)
• D)
  22.4cm\(^3\)

A saturated solution of AgCl was found to have a concentration of 1.30 x 10-5 mol dm-3. The solubility product of AgCl therefore is?

• A. 1.30 x 10-5 mol2 dm-6
• B. 1.30 x 10-7 mol2 dm-6
• C. 1.69 x 10-10 mol2 dm-6
• D. 2.60 x 10-12 mol2 dm-6

consider the following reaction equation: 2NH₃ .+ 3Cl₂ → N₂ + 6HCl. NH3 is acting as?

• A. a reducing agent
• B. a dehydrating agent
• C. a drying agent
• D. an oxidizing agent