Consider the reaction: 2AI(s) + 6H⁺ (aq) → 2AI³⁺(aq) + 3H₂(g). What is the total number of moles of electrons transferred from the aluminium atoms to the hydrogen ions?

• A. 3
• B. 4
• C. 5
• D. 6

How many unpaired electrons are there in an atom of an element with the following electronic configuration? 1S²2s²2P⁶

• A. 0
• B. 1
• C. 2
• D. 6

One of these atomic shells is the most stable

• A) M
• B) N
• C) K
• D) L

The alkanol obtained from the production of soap is

• A. Dihydric Alkanol
• B. Tertiary Alkanol
• C. Trihydric Alkanol
• D. Monohydric Alkanol

Which of the following salts can be melted without decomposition?

• A. Na₂CO₃
• B. CaCO₃
• C. MgCO₃
• D. ZnCO₃

Determine the amount of electrons needed to deposit 6.4g of copper during the electrolysis of copper (ll) tetraoxosulphate (IV) solution [Cu = 64]

• A. 0.10 mole
• B. 0.20 mole
• C. 1.0 mole
• D. 2.0 mole

C2H4(g) + H2(g) → C2H6(g) ΔH = -137kJ mol-1 The reaction represented above is

• A. exothermic
• B. spontaneous
• C. endothermic
• D. in equilibrium

Which of the following Alkanols will not undergo oxidation reaction by acidified K\(_2\)Cr\(_2\)O\(_7\)?

• A)
  CH\(_3\)CH\(_2\)CH(OH)CH\(_3\)
• B)
  CH\(_3\)CH\(_2\)CH\(_2\)CH\(_2\)OH
• C)
  CH\(_3\)CH\(_2\)CH\(_2\)C(CH\(_3\))(OH)CH\(_3\)
• D)
  None of the above

The vulcanizer's solution is prepared by dissolving rubber in

• A. ethanol
• B. kerosine
• C. benzene
• D. petrol

The I.U.P.A.C. name for the compound is

• A) pent-3-enoic acid
• B) pent-4-enoic acid
• C) pent-2-enoic acid
• D) pent-3-ene-l-oic acid