Class 10 Practice Level 2 - Acids, Bases and Salts - Set 1

Total questions: 25

Which of the following acids is considered a strong acid?

Topic: Strength of Acids

Citric acid

Acetic acid

Hydrochloric acid

Carbonic acid

None

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

Topic: pH Scale

It doubles

It becomes ten times greater

It becomes a thousand times greater

It becomes a hundred times greater

None

What is the product formed when calcium carbonate reacts with hydrochloric acid?

Topic: Common Reactions

Calcium chloride and water

Calcium chloride and carbon dioxide

Calcium hydroxide and water

Calcium sulphate and carbon dioxide

None

Which of the following statements about bases is correct?

Topic: Properties of Bases

They turn red litmus blue

They react with metals to produce hydrogen gas

They have a sour taste

They do not conduct electricity

None

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

Topic: pH of Solutions

It is neutral

It is basic

It is acidic

It is a buffer solution

None

Which of the following is an example of a neutralization reaction?

Topic: Neutralization Reaction

HCl + NaOH → NaCl + H₂O

Na + H₂O → NaOH + H₂

CO₂ + H₂O → H₂CO₃

HCl + AgNO₃ → AgCl + HNO₃

None

Which of the following salts is used in baking powder?

Topic: Salts

Sodium chloride

Sodium bicarbonate

Calcium carbonate

Potassium chloride

None

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

Topic: Reaction with Metals

Copper

Silver

Zinc

Gold

None

What colour does phenolphthalein turn in a basic solution?

Topic: Acid-Base Indicators

Red

Blue

Pink

Colourless

None

10.

Which acid is commonly found in vinegar?

Topic: Common Acids

Hydrochloric acid

Acetic acid

Citric acid

Sulfuric acid

None

11.

Which of the following solutions will have the highest pH?

Topic: pH Scale

Lemon juice

Pure water

Soap solution

Milk

None

12.

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

Topic: Nature of Salt Solutions

Sodium chloride

Ammonium chloride

Sodium carbonate

Potassium sulphate

None

13.

What happens to the pH of an acidic solution when it is diluted with water?

Topic: </strong Effect on pH

pH increases

pH decreases

pH remains the same

Solution becomes neutral
None

14.
Which of the following is a mineral acid?

Topic: Nature of Acids

Citric acid

Acetic acid

Hydrochloric acid

Tartaric acid
None

15.
What is formed when an acid reacts with a base?

Topic: Reaction with Bases

Salt and water

Salt and hydrogen gas

Water and carbon dioxide

Salt and oxygen
None

16.
Which of the following acids is used in the manufacture of fertilizers?

Topic: Uses of Salts

Sulfuric acid

Acetic acid

Citric acid

Tartaric acid
None

17.
Which of the following is a property of a base?

Topic: Properties of Bases

Sour taste

Turns blue litmus red

Slippery feel

Reacts with metals to produce hydrogen gas
None

18.
Which of the following solutions will turn blue litmus red?

Topic: Nature of Acids and Bases

Ammonium hydroxide

Sodium bicarbonate

Vinegar

Soap solution
None

19.
What is the pH of gastric juice in the human stomach?

Topic: Common Substances

1 to 2

3 to 4

5 to 6

7 to 8
None

20.
What type of reaction is represented by the equation: Na₂CO₃ + 2HCl → 2NaCl + CO₂ + H₂O?

Topic: Types of Reactions

Combustion

Neutralization

Decomposition

Displacement
None

21.
Which of the following is a weak base?

Topic: Identification of Bases

Sodium hydroxide

Ammonium hydroxide

Potassium hydroxide

Calcium hydroxide
None

22.
Which salt is used in the manufacture of soap?

Topic: Uses of Salts

Sodium chloride

Sodium hydroxide

Sodium sulphate

Sodium carbonate
None

23.
Which of the following acids is found in citrus fruits?

Topic: Properties of Acids

Sulfuric acid

Hydrochloric acid

Citric acid

Acetic acid
None

24.
Which of the following is a characteristic of a base?

Topic: Nature of Bases

Sour taste

Reacts with carbonates to produce carbon dioxide

Slippery to touch

Turns blue litmus red
None

25.
What happens to the pH of a basic solution when it is diluted with water?

Topic: Effect of Dilution

pH increases

pH decreases

pH remains the same

Solution becomes neutral
None

1 out of 25

Time's up

Class 10 Practice Level 2 - Acids, Bases and Salts - Set 1

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