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 following gives the exact increasing order of acid strength?

Water < acetic acid < hydrochloric acid

Water < hydrochloric acid < acetic acid

Acetic acid < water < hydrochloric acid

Hydrochloric acid < water < acetic acid

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

To preserve tooth decay we are advised to brush our teeth regularly. The nature of the toothpaste commonly used is:

Acidic

Neutral

Basic

Corrosive

6 / 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

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

Which of the subsequent is/are true when HCl(g) is passed through water?

It does not ionise in the solution as it is a covalent compound

It ionises in the solution

It gives both hydrogen and hydroxyl ions in the solution.

It forms hydronium ion in the solution due to the combination of hydrogen ion with water molecule

2 and 4

1

2

3 and 4

9 / 15

The chemical formula for methonic acid

H2COH

HOOCH

HCOOH

None

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

The source of oxyalic acid is

cucumber

coriander

Potato

Tomato

13 / 15

Hydrogen is used in manufacture

of ammonia for fertilizers and as Rocket fuel.

soaps

dyes

none

14 / 15

Washing soda is prepared from

sodium chloride

sodium carbonate

sodium hydroxide

sodium nitrate

15 / 15

Common name calcium sulphate hemihydrate

lime stone

Plaster of paris

white stone

none

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Science : Ch 02 – Acids Bases and Salts

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