1.1.2.1 Oxidation and Reduction in Term of Gain or Loss Electron MCQ

Which of the following equation shows that a chlorine molecule receives 2 electrons to form 2 chloride ions?

Which of the following equation shows that a copper(II) ion receive 2 electrons to form
copper atom?

Which of the following equation shows that a zinc atom donates 2 electrons to form a zinc ion?

The following equation represents the oxidation of magnesium atom.

Mg → Mg²⁺ + 2e-

What is meant by oxidation based on the equation?

Which of the following is a reduction reaction?

Which half equations show that reactant acts as a reducing agent?

I. \(\mathrm{Mg} \longrightarrow \mathrm{Mg}^{2+}+2 \mathrm{e}^{-}\)
II. \(\mathrm{Cu}^{2+}+2 \mathrm{e}^{-} \longrightarrow \mathrm{Cu}\)
III. \(2 \mathrm{Cl}^{-} \longrightarrow \mathrm{Cl}_2+2 \mathrm{e}^{-}\)
IV. \(2 \mathrm{H}^{+}+2 \mathrm{e}^{-} \longrightarrow \mathrm{H}_2\)

The reaction between iron(II) sulphate solution and bromine can be represented by the
following equation.

Fe²⁺ + Cl₂ → Fe³⁺ + 2Cl⁻

Which of the following is true about the reaction?

Which of the followings are reducing process?

Which set of definition of oxidation in terms of oxygen, hydrogen and electron is correct?

\[
\begin{array}{|l|l|l|l|}
\hline & \text { Oxygen } & \text { Hydrogen } & \text { Electrons } \\
\hline \text { A } & \text { Gain } & \text { Loss } & \text { Loss } \\
\hline \text { B } & \text { Gain } & \text { Loss } & \text { Gain } \\
\hline \text { C } & \text { Loss } & \text { Gain } & \text { Gain } \\
\hline \text { D } & \text { Loss } & \text { Gain } & \text { Loss } \\
\hline
\end{array}
\]