Class 10 Quiz Level 2 (Moderate) – Acids, Bases and Salt

Total questions: 20

Which salt is used in the manufacture of soap?

Topic: Uses of Salts

Deselect Answer

Sodium chloride

Sodium hydroxide

Sodium sulphate

Sodium carbonate

None

If the pH of a solution changes from 5 to 3, how does the hydrogen ion concentration change?

Topic: pH Scale

Deselect Answer

It doubles

It becomes ten times greater

It becomes a thousand times greater

It becomes a hundred times greater

None

A solution has a pH of 8. Which of the following statements is true about the solution?

Topic: pH of Solutions

Deselect Answer

It is neutral

It is basic

It is acidic

It is a buffer solution

None

The aqueous solution of which of the following salts will be neutral?

Topic: Nature of Salt Solutions

Deselect Answer

Sodium chloride

Ammonium chloride

Sodium carbonate

Potassium sulphate

None

Which of the following solutions will turn blue litmus red?

Topic: Nature of Acids and Bases

Deselect Answer

Ammonium hydroxide

Sodium bicarbonate

Vinegar

Soap solution

None

Which of the following solutions will have the highest pH?

Topic: pH Scale

Deselect Answer

Lemon juice

Pure water

Soap solution

Milk

None

What is formed when an acid reacts with a base?

Topic: Reaction with Bases

Deselect Answer

Salt and water

Salt and hydrogen gas

Water and carbon dioxide

Salt and oxygen

None

Which of the following is a characteristic of a base?

Topic: Nature of Bases

Deselect Answer

Sour taste

Reacts with carbonates to produce carbon dioxide

Slippery to touch

Turns blue litmus red

None

Which metal will react with hydrochloric acid to produce hydrogen gas?

Topic: Reaction with Metals

Deselect Answer

Copper

Silver

Zinc

Gold

None

10.

What type of reaction is represented by the equation: Na₂CO₃ + 2HCl → 2NaCl + CO₂ + H₂O?

Topic: Types of Reactions

Deselect Answer

Combustion

Neutralization

Decomposition

Displacement

None

11.

What is the pH of a solution that is neither acidic nor basic?

Topic: pH Scale

Deselect Answer

None

12.

What is the colour change of methyl orange in a basic solution?

Topic: Common Indicators

Deselect Answer

Red

Yellow

Blue

Green

None

13.

Which gas is released when sodium carbonate reacts with sulfuric acid?

Topic: Reaction with Carbonates

Deselect Answer

Hydrogen

Oxygen

Carbon dioxide

Nitrogen

None

14.

Which base is commonly found in household bleach?

Topic: Common Bases

Deselect Answer

Sodium carbonate

Sodium hydroxide

Calcium hydroxide

Ammonium hydroxide

None

15.

If a solution changes the colour of red litmus paper to blue, what can be said about the solution?

Topic: pH of Solutions

Deselect Answer

It is acidic

It is basic

It is neutral

It is a salt solution

None

16.

What is formed when zinc reacts with hydrochloric acid?

Topic: Reaction with Acids

Deselect Answer

Zinc chloride and hydrogen gas

Zinc sulphate and water

Zinc carbonate and oxygen gas

Zinc oxide and carbon dioxide

None

17.

Which base is used in antacids to neutralize stomach acid?

Topic: Uses of Salts

Deselect Answer

Sodium hydroxide

Magnesium hydroxide

Potassium hydroxide

Calcium hydroxide

None

18.

Which of the following indicators will turn red in an acidic solution?

Topic: Acid-Base Indicators

Deselect Answer

Phenolphthalein

Methyl orange

Bromothymol blue

Litmus

None

19.

Which acid is used in car batteries?

Topic: Uses of Acids

Deselect Answer

Hydrochloric acid

Sulfuric acid

Acetic acid

Nitric acid

None

20.

Which indicator will turn blue in an alkaline solution?

Topic: Indicators

Deselect Answer

Methyl orange

Phenolphthalein

Litmus

Bromothymol blue

None

1 out of 20

Time's up

Class 10 Quiz Level 2 (Moderate) – Acids, Bases and Salt

Welcome back