Introduction to Chemistry - ICSE Class 6 (Chemistry)

🧪 ICSE Class 6 Chemistry
Introduction to Chemistry

50+ Questions MCQ · T/F · Fill · Match · SA

Click on 🔍 Show Answer to reveal.

MCQ (1-15) T/F (16-25) Fill (26-35) Match (36-37) SA (38-50)

📝 Multiple Choice Questions

1-15

MCQ 1

Aldrin is used as:
(a) fungicide (b) pesticide (c) insecticide (d) fertiliser

✅ Answer: (b) pesticide

MCQ 2

Who is known as the Father of Modern Chemistry?
(a) John Dalton (b) Dmitri Mendeleev (c) Antoine Lavoisier (d) Joseph Priestley

✅ Answer: (c) Antoine Lavoisier

MCQ 3

Who discovered Hydrogen?
(a) Joseph Priestley (b) John Dalton (c) Daniel Rutherford (d) Henry Cavendish

✅ Answer: (d) Henry Cavendish

MCQ 4

Urea is an important:
(a) Fuel (b) Preservative (c) Fertiliser (d) Medicine

✅ Answer: (c) Fertiliser

MCQ 5

TNT is used as:
(a) Fertiliser (b) Explosive (c) Medicine (d) Fuel

✅ Answer: (b) Explosive

MCQ 6

Bordeaux mixture is a:
(a) Fungicide (b) Fertiliser (c) Fuel (d) Preservative

✅ Answer: (a) Fungicide

MCQ 7

Nylon is a:
(a) Natural fibre (b) Artificial fibre (c) Metal (d) Gas

✅ Answer: (b) Artificial fibre

MCQ 8

William Ramsay discovered:
(a) Oxygen (b) Hydrogen (c) Inert gases (d) Nitrogen

✅ Answer: (c) Inert gases

MCQ 9

Mortar is used as:
(a) Medicine (b) Building material (c) Fertiliser (d) Fuel

✅ Answer: (b) Building material

MCQ 10

Sodium benzoate is used as:
(a) Preservative (b) Fuel (c) Metal (d) Gas

✅ Answer: (a) Preservative

MCQ 11

Marie Curie won Nobel Prize:
(a) Once (b) Twice (c) Thrice (d) Four times

✅ Answer: (b) Twice

MCQ 12

Safety lamp was invented by:
(a) Dalton (b) Davy (c) Ramsay (d) Curie

✅ Answer: (b) Davy

MCQ 13

Green Revolution is related to:
(a) Agriculture (b) Medicine (c) Clothing (d) Fuel

✅ Answer: (a) Agriculture

MCQ 14

DDT is a:
(a) Fertiliser (b) Insecticide (c) Preservative (d) Fuel

✅ Answer: (b) Insecticide

MCQ 15

John Dalton is known for:
(a) Atomic theory (b) Helium (c) Safety lamp (d) Oxygen

✅ Answer: (a) Atomic theory

🔘 True / False

16-25

T/F 16

Urea is an important fertiliser.

✅ Answer: True

T/F 17

Daniel Rutherford discovered oxygen.

✅ Answer: False

T/F 18

Gunpowder is an insecticide.

✅ Answer: False

T/F 19

Antibiotics are medicines.

✅ Answer: True

T/F 20

Nylon is a natural fibre.

✅ Answer: False

T/F 21

Cement is a building material.

✅ Answer: True

T/F 22

Fertilisers decrease crop production.

✅ Answer: False

T/F 23

LPG is used for cooking.

✅ Answer: True

T/F 24

Preservatives prevent food spoilage.

✅ Answer: True

T/F 25

Marie Curie discovered plastic.

✅ Answer: False

📋 Fill in the Blanks

26-35

Fill 26

Chemistry deals with the study of ______.

✅ Answer: matter

Fill 27

People who practised alchemy were called ______.

✅ Answer: Alchemists

Fill 28

DDT is an important ______.

✅ Answer: insecticide

Fill 29

LPG is mainly used for ______.

✅ Answer: cooking

Fill 30

John Dalton proposed the ______ theory.

✅ Answer: atomic

Fill 31

Safety lamp was invented by Sir Humphry ______.

✅ Answer: Davy

Fill 32

Fertilisers help to increase crop ______.

✅ Answer: yield

Fill 33

Sodium benzoate is a food ______.

✅ Answer: preservative

Fill 34

William Ramsay discovered ______ gases.

✅ Answer: inert

Fill 35

Mortar is a mixture of cement, sand and ______.

✅ Answer: water

🔗 Matching Type

36-37

Match 36

Column A	Column B
1. Medicine	a. Paracetamol
2. Cosmetics	b. Skin cream
3. Clothing	c. Cotton clothes
4. Fungicide	d. Bordeaux mixture

✅ Answer:
1 → a
2 → b
3 → c
4 → d

Match 37

Column A	Column B
1. John Dalton	a. Safety lamp
2. Marie Curie	b. Atomic theory
3. William Ramsay	c. Nobel Prize (twice)
4. Sir Humphry Davy	d. Inert gases

✅ Answer:
1 → b
2 → c
3 → d
4 → a

📌 Short Answer Questions

38-50

SA 38

What is Chemistry?

✅ Answer: Chemistry is the branch of science that deals with matter and its changes.

SA 39

Define fuel.

✅ Answer: Fuels are substances that produce heat energy on combustion.

SA 40

What are pesticides?

✅ Answer: Pesticides are chemicals used to kill pests.

SA 41

What are fungicides? Give two examples.

✅ Answer: Fungicides kill fungi. Example: Bordeaux mixture, Sulphur.

SA 42

What are fertilisers? Give two examples.

✅ Answer: Fertilisers provide nutrients to crops. Example: Urea, Ammonium phosphate.

SA 43

What are preservatives?

✅ Answer: Preservatives prevent food spoilage.

SA 44

Give two artificial fibres.

✅ Answer: Nylon and Rayon.

SA 45

What is alchemy?

✅ Answer: Alchemy was an ancient practice aimed at converting base metals into gold.

SA 46

Name two building materials.

✅ Answer: Cement and Steel.

SA 47

Name two medicines.

✅ Answer: Aspirin and Paracetamol.

SA 48

Why is chemistry important in agriculture?

✅ Answer: It helps increase crop production using fertilisers and pesticides.

SA 49

Name the discoverer of Oxygen.

✅ Answer: Joseph Priestley.

SA 50

Name the scientist who proposed atomic theory.

✅ Answer: John Dalton.

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Introduction to Chemistry

ICSE Class 6 · 50+ Important Questions with Answers. Click to reveal.

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