Which of the following equimolar solutions will have the highest pH?

A. CH₃COOHa

B. NaOH

C. HCl

D. NH₄OH

Which of the following ions require the largest quantity of electricity for discharge at an electrode?

A. 4.0 moles of Cl^-

B. 3.0 moles of Na⁺

C. 2.5 moles of Cu²⁺

D. 2.0 moles of Al³⁺

Phenolphthalein in acidic solution is

A. red

B. orange

C. colourless

D. yellow

When iron is exposed to moisture and it rusts, the value of ΔG for the reaction is

A. neutral

B. zero

C. positive

D. negative

In which of the following reactions can the oxidation number of the nitrogen be said to have increased?

A. 2NO_(g) + O_2(g) → 2NO_2(g)

B. NO_(g) + Cl_2(g) → NOCl_2(l)

C. FeSO_4(aq) + NO_(g) → Fe(NO)SO_4(s)

D. NO_(g) + Br_2(l) → NOBr_2(l)

2H₂ + O₂2 → H₂+O ΔH = -571kJ
In the equation above, how much heat will be liberated if 12.0g of hydrogen is burnt in excess oxygen?

A. -1142 kJ

B. -571 kJ

C. +1142 kJ

D. -1713 kJ

A concentrated solution containing H⁺, Cu²⁺, OH^- and Cl^- was electrolyzed using platinum electrodes.
The ion that will be discharged at the cathode is

A. Cu²⁺

B. Cl^-

C. H⁺

D. OH^-

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

What is the correct IUPAC name for NO\(_{2} ^{-}\)?

A. Dioxonitrate (IV) ion

B. Trioxonitrate (III) ion

C. Trioxonitrate (IV) ion

D. Dioxonitrate (III) ion

What will happen if an aluminium spoon is used to stir a solution of iron (II) trioxonitrates (V)?

A. The spoon will be oxidized while the iron (II) ions will be reduced to the metal

B. The spoon will increase in size

C. The spoon will be reduced while the iron (II) ions will be oxidized

D. The spoon will be reduced