A rectangular mesh with asbestos at its centre kept for initiating even distribution of heat to the bottom of the apparatus.
- ATripod stand
- ✓Wire gauze
- CRetort stand
Answer: B.
View full solution →Question types
Introduction to Chemistry question types
103 questions across 8 question groups — pick any mix to generate a CHEMISTRY paper with step-by-step answer keys.
103
Questions
8
Question groups
5
Question types
01
MCQ
25 Q→02[2 Mark Question Answer]
19 Q→03[3 Mark Question Answer]
7 Q→04[5 Mark Question Answer]
4 Q→05[1 Mark Question Answer]
37 Q→06Fill in the blanks.
5 Q→07TRUE / FALSE
5 Q→08Match The Following.
1 Q→Sample Questions
Introduction to Chemistry questions
One sample from each question group in this chapter. Select any group above to see the full set with answer keys.
A modern apparatus with an air regulator, used for heating purposes.
- ASpirit lamp
- ✓Bunsen burner
- CElectric stove
Answer: B.
View full solution →A modern apparatus with an air regulator, used for heating purposes.
- ARetort
- ✓Beehive shelf
- CBurette
Answer: B.
View full solution →A long glass tube with a broad inlet at the top, which allows entry of the reactants into the round bottom flask, during laboratory preparations of gases.
- ✓Thistle funnel
- BDelivery tube
- CFunnel
Answer: A.
View full solution →A glass apparatus that measures liquid by sucking the liquid at one end up to the marked level and later pouring it out.
- ABurette
- BMeasuring cylinder
- ✓Pipette
Answer: C.
View full solution →Give reasons for the following
Aspirin is one of the most widely used medications – globally.
Aspirin is one of the most widely used medications – globally.
Give reasons for the following
All medicines must be taken under proper doctors' supervision and in the correct dose.
All medicines must be taken under proper doctors' supervision and in the correct dose.
Match the apparatus A to J shown below with their correct names 1 to 10 given below:
1. Delivery Tube
2. Pipette
3. Wire gauze
4. Bee-hive shelf
5. Thistle funnel
6. Flat bottom flask
7. Test tube stand
8. Burette
9. Retort
10. Conical flask
1. Delivery Tube
2. Pipette
3. Wire gauze
4. Bee-hive shelf
5. Thistle funnel
6. Flat bottom flask
7. Test tube stand
8. Burette
9. Retort
10. Conical flask
Match the following words in column A with those in column B:
| Column A | Column B | ||
| (a) | Clothing | (i) | toothpaste, cosmetics |
| (b) | Green Revolution | (ii) | nylon, wool |
| (c) | Building Material | (iii) | agriculture |
| (d) | Commodities of daily | (iv) | mortar, cement |
Name the scientists who discovered the following:
Elements
Food processing is an important procedure for obtaining marketable food products.
What is the contribution of chemistry in following field?
Clothing
Clothing
Give the basic difference between Inorganic Chemistry and Organic Chemistry.
State what are – ‘stain removals’. Name three important stain removers & give their prime functions.
Give a comparative difference between soaps and detergents. Give a reason. why detergents have an advantage over soap.
Explain in brief the importance of Chemistry in the production of various products.
Explain in brief the importance of Chemistry in agriculture.
Explain how medicines are a boon to mankind. State the positive & negative effects of medicines like aspirin and paracetamol.
Differentiate between: natural fibres & synthetic fibres.
State what is – Terylene. State some of its characteristic properties which make it suitable for commercial use
State what is – Terylene. State some of its characteristic properties which make it suitable for commercial use
Give reasons for the following
Polyester is added to natural fiber cotton, to give terylene.
Polyester is added to natural fiber cotton, to give terylene.
Give reasons for the following
Cosmetics may contain preservatives, as one of their ingredients.
Cosmetics may contain preservatives, as one of their ingredients.
A philosopher’s stone is not exactly a stone.
Give reasons for the following
Ordinary soap is wasted in hard water.
Ordinary soap is wasted in hard water.
Give reasons for the following
Titanium dioxide is an important ingredient in cosmetics.
Titanium dioxide is an important ingredient in cosmetics.
Inert gases were discovered by ___________
L.P.G. is used for ___________
Food items like jams and pickles are protected by using ___________.
_____________ help to increase the production of food.
___________ deals with the study of matter and the changes it undergoes.
Enzymes secreted by our body are chemicals:
Gunpowder is an insecticide:
D.D.T. is an important fertiliser:
Antibiotics are used as preservatives:
Chemistry plays an important role in the national economy:
Match the following scientists in column A with their discoveries or contributions in column B.
| Column A | Column B | ||
| (a) | Marie Curie | (i) | Safety Lamp |
| (b) | John dalton | (ii) | Helium |
| (c) | William Ramsey | (iii) | Nobel Prize Winner (two times) |
| (d) | Sir Humphry Davy | (iv) | Atomic Theory |
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