Question

1. Tick (✓) the correct answer.
1. Bauxite is the ore of
(a) Copper
(b) Iron
(c) Aluminium (d) Zinc
2. Which of the following substances is brittle?
(a) Copper O (b) Sulphur O (c) Iron 0 (d) Aluminium 0
3. Which of the following nonmetals is used for purification of water?
(a) Bromine O O (b) Iodine O (c) Chlorine O (d) Sulphur
4. Which of the following nonmetals is not present in nitric acid?
(a) Oxygen
O (b) Nitrogen 0 c
(c) Hydrogen 0 (d) Chlorine
0 0 0 0
B. Match the Columns.
Column B
Column A
1. A liquid nonmetal
2. Ringing sound
3. Diamond
(a) Most reactive
(b) Carbon
(c) Bromine
(d) Sonorous
(e) Basic
4. Metallic oxides
5. Potassium
C. Very Short Answer 'Type Questions
1. Name any one ore of iron. Haematite
2. What are elements like silicon, boron and arsenic called? Metallaids
3. What is the property of metals to be beaten into thin sheets known as? M.​

Answer 1

Answer:

A- Tick the correct

1)- (c) Aluminium (✓)

2)- (b) Sulphur (✓)

3)- (c) Chlorine (✓)

4)- (d) Chlorine (✓)

B- Match the columns:-

1- A liquid non metal -- Bromine

2- Ringing sound -- Sonorous

3- Diamond -- Carbon

4- Metallic oxides -- Basic

5- Potassium -- Most reactive

C- Very short answer type questions:-

1- Hematite

2- Metalloids

3- Malleability