Test on Neutralization Reactions and Their Applications

Question 1: When hydrochloric acid is neutralised with an alkali, lithium chloride is produced as the only salt.

A. Ano

B. Ne

Explanation: The study materials state that 'Hydrochloric acid produces chloride salts' and specifically give the example: 'hydrochloric acid + sodium hydroxide → sodium chloride + water'. While lithium chloride is a chloride salt, the materials state that sodium chloride is formed in the example, and water is also a product. The statement implies only lithium chloride is produced as *the only salt*, which is not explicitly stated or implied as the universal outcome for all hydrochloric acid neutralisations, and the example given shows sodium chloride and water.

Question 2: Farmers add lime to soil that is too acidic to make it more neutral.

A. Ano

B. Ne

Explanation: The study materials state that if a soil is too acidic, farmers can add an alkali called lime to their fields. The alkali cancels out the acids, making the soil more neutral, which is described as neutralisation. The materials also explicitly mention that 'Lime is used to cure an acid soil'.

Question 3: Based on the general word equation for the reaction of acids with alkalis, which of the following substances are correctly identified?

A. Acid is a product.

B. Alkali is a reactant.

C. Salt is a reactant.

D. Water is a product.

Explanation: The study materials state: 'The general word equation for the reaction of acids with alkalis is: acid + alkali → salt + water'. It also defines reactants as 'the starting substances... written on the left' and products as 'the new substances... written on the right'. Therefore, acid and alkali are reactants, and salt and water are products.

Question 4: Based on the provided information, which type of salt is formed when sulfuric acid reacts in a neutralisation reaction?

A. Nitrate salt

B. Chloride salt

C. Sulfate salt

D. Common salt

Explanation: The study materials state that 'sulfuric acid produces sulfate salts'. Therefore, when sulfuric acid reacts in a neutralisation reaction, a sulfate salt is formed.

Question 5: Any type of strong acid is mentioned in the study materials as capable of removing iron oxide from metals via a neutralisation reaction.

A. Ano

B. Ne

Explanation: The study materials specifically state that sulfuric acid can attack rust and remove it from the surface via a neutralisation reaction, without mentioning any other type of strong acid.