Science : Ch 02 – Acids Bases and Salts

This test is designed based on NCERT Syllabus for Class 10 Topics : Acids Bases and Salts

Each time random 15 questions will be displaced
So retake the quiz till you have mastered all the questions

1 / 15

Which of the consequent will turn phenolphthalein pink?

NaOH(aq)

HCl(aq)

CH₃COOH(aq)

H₂O

2 / 15

If a few drops of a concentrated acid accidentally spills over the hand of a student, what should be done?

Wash the hand with a saline solution

Wash the hand immediately with plenty of water and apply a paste of sodium hydrogen carbonate

After washing with plenty of water, apply a solution of sodium hydroxide on the hand

Neutralise the acid with a strong alkali

3 / 15

If 10 mL of H₂SO₄ is mixed with 10 mL of Mg(OH)₂ of the same concentration, the resultant solution will give the following colour with universal indicator:

Red

Yellow

Green

Blue

4 / 15

Which of the following solutions in water does not conduct electricity?

Hydrochloric acid

Sodium chloride

Glucose

Sulphuric acid

5 / 15

Sodium carbonate is a basic salt because it is a salt of:

Strong acid and strong base

Weak acid and weak base

Strong acid and weak base

Weak acid and strong base

6 / 15

Common salt other than being used in kitchen can also be used as the raw material for making:

Washing soda

Bleaching powder

Baking soda

Slaked lime

1 and 3

1 and 2

1, 2 and 3

1, 3 and 4

7 / 15

Which of the following statements is accurate about an aqueous solution of an acid and a base?

Higher the pH, stronger the acid

Higher the pH, weaker the acid

Higher the pH, stronger the base

Lower the pH, weaker the base

1 and 3

2 and 3

2 and 4

1 and 4

8 / 15

What will take place when the solution of an acid is blend with the solution of a base in a test tube?

The temperature of the solution increases

The temperature of the solution decreases

The temperature of the solution remains the same

Salt formation takes place

1 and 4

1

1 and 3

2 and 4

9 / 15

Which of the following statements is correct about an aqueous solution of an acid and a base?

The higher the pH, the stronger the acid

The higher the pH, the weaker the acid

The lower the pH, the stronger the base

The lower the pH, the weaker the base

2 and 4

1 and 3

2 and 3

1 and 4

10 / 15

An old person complained of acute pain in stomach. Doctor gave small antacid tablet and he got immediate relief. What actually happened?

anatacids added excess acid in his stomach

anatacids neutralized the excess acid in his stomach

anatacids removed the excess acid in his stomach

none

11 / 15

What types of ions are formed when an acid is dissolved in water ?

H+ ions are formed

H<sub>2</sub>0 +

OH- ions

None

12 / 15

What types of ions are formed when a base is dissolved in water ?

H+ ions are formed

OH- ions

allof these

13 / 15

The source of Acetic acid is

lime

vinegar

orange

none

14 / 15

The chemical used in manufacture of soaps

Na₂Co₃

NaOH

NACo₄

Na₂OH

15 / 15

The other name of methanoic acid is

Formic acid

sulpuric acid

Hydrochloric acid

none

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Science : Ch 02 – Acids Bases and Salts

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