The salt solution which does not react with ammonium hydroxide is:

• Calcium Nitrate

• Zinc Nitrate

• Lead Nitrate

• Copper Nitrate

The organic compound which undergoes substitution reaction is :

• C₂H₂

• C₂H₄

• C₁₀H₁₈

• C₂H₆

The electrolysis of acidified water is an example of:

• Reduction

• Oxidation

• Redox Reaction

• Synthesis

The IUPAC name of dimethyl ether is:

• Ethoxy methane

• Methoxy methane

• Methoxy ethane

• Ethoxy ethane

The catalyst used in the contact process is

• Copper

• Iron

• Vanadium pentoxide

• Manganese dioxide