Acids, Bases and Salts Class 10 MCQ Quiz – Test Your Knowledge!

Anand took four colorless solutions P, Q, R, and S, and performed the following tests.

What is the definite conclusion that Anand can reach?

Meena rubbed the yellow-colored turmeric stain on his son’s shirt with soap. She observed the color of the stain became:

A solution of a base with pH 12.1 is given.

Which of the following can be done to decrease its pH?

1. Add distilled water to it.
2. Add a solution of a different base with pH 8.7
3. Add a few drops of an acid with an unknown pH

Assertion (A): Fresh milk in which baking soda is added, takes a longer time to set as curd.

Reason (R): Baking soda decreases the pH value of fresh milk to below 6.

The yellow color of turmeric changes to red on addition of soap solution. When substance P is added to turmeric, there is no change in color.

Which of the following is definitely true about substance P?

Mild non-corrosive basic salt is

Which of the following are properties of acids?

1. They are bitter in taste.
2. They react with metals to produce hydrogen gas.
3. They are easily soluble in water.

Which of the following salts does not contain water of crystallization?

Assertion (A): While dissolving an acid in the water, the water must always be added slowly to the acid with constant stirring.

Reason (R): Dissolving an acid in water is a highly exothermic reaction.

Some activities cause the soil and water resources in that area to become acidic. Once these activities are stopped, the land has to be treated to enable plants to grow once again.

Which of the following should be added to the land to decrease the acidity permanently and allow plants to grow once again?

Which of the following reactions is a neutralization reaction?

In an attempt to demonstrate electrical conductivity through an electrolyte, the following apparatus was set up.

Which among the following statement(s) is/are correct?

1. The bulb will not glow because the electrolyte is not acidic.
2. The bulb will glow because NaOH is a strong base and furnishes ions for conduction.
3. The bulb will not glow because the circuit is incomplete.
4. The bulb will not glow because it depends upon the type of electrolytic solution.

The reaction between MnO₂ with HCl is depicted in the following diagram. It was observed that a gas with bleaching abilities was released.

The chemical reaction between MnO₂ and HCl is an example of:

Anita added a drop each of diluted acetic acid and diluted hydrochloric acid on pH paper and compared the colors. Which of the following is the correct conclusion?

Which of the following are correctly matched?