Online Test of Chapter 3 Metals and Non-Metals Test 1 Science| Class 10th
1. The metal with lowest density is
(a) sodium.
(b) potassium.
(c) lithium.
(d) caesium.
2. Which of the following pairs will give displacement reactions?
(a) NaCl solution and copper metal
(b) MgCI2 solution and aluminium metal
(c) FeSO4 solution and silver metal
(d) AgNO3 solution and copper metal
3. An element reacts with oxygen to give a compound with a high melting point. This compound is also soluble in water. The element is likely to be:
(a) Calcium
(b) Carbon
(c) Silicon
(d) Iron
4. Purification of silicon for use in semiconductors is carried out by
(a) Heating under vacuum
(b) Froth floatation
(c) Liquation
(d) Zone refining
5. Identify the correct order of reactivity of metals among the following.
(a) Cu < Fe < Zn < Al < Na
(b) Fe < Zn < Cu < Na < Al
(c) Zn < Cu < Fe < Al < Na
(d) Cu < Zn < Al < Na < Fe
6. An element reacts with oxygen to give a compound with a high melting point. This compound is also soluble in water. The element is likely to be
(a) Calcium
(b) Carbon
(c) Silicon
(d) Iron
7. An additional substance added during smelting, which reacts with impurities to form a fusible product is called
(a) Flux
(b) Slag
(c) Gangue
(d) Mud
8. In the thermite process, the reducing agent used is
(a) Calcium
(b) Sodium
(c) Coke
(d) Aluminium powder
9. Which of the following are the ingredients of gun metal?
(a) Iron, Tin
(b) Copper, Tin
(c) Iron, Brass, Tin
(d) Iron, Zinc, Titanium
10. Which of the following methods is suitable in preventing an iron frying pan from rusting?
(a) Applying grease
(b) Applying paint
(c) Applying a coating of zinc
(d) All of the above.
Chapter 3 Metals and Non-Metals Quiz 1| Class 10th
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Question 1 of 10
1. Question
The metal with lowest density is
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Question 2 of 10
2. Question
Which of the following pairs will give displacement reactions?
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Question 3 of 10
3. Question
An element reacts with oxygen to give a compound with a high melting point. This compound is also soluble in water. The element is likely to be:
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Question 4 of 10
4. Question
Purification of silicon for use in semiconductors is carried out by
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Question 5 of 10
5. Question
Identify the correct order of reactivity of metals among the following.
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Question 6 of 10
6. Question
An element reacts with oxygen to give a compound with a high melting point. This compound is also soluble in water. The element is likely to be
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-
Question 7 of 10
7. Question
An additional substance added during smelting, which reacts with impurities to form a fusible product is called
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-
Question 8 of 10
8. Question
In the thermite process, the reducing agent used is
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Question 9 of 10
9. Question
Which of the following are the ingredients of gun metal?
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Question 10 of 10
10. Question
Which of the following methods is suitable in preventing an iron frying pan from rusting?
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