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Friday, 3 June 2011

Mcq on metal and Non metal

CHAP TER - Metals and Nonmetals

                                       (MCQ) CBSE Class 8: Solved Science
1. The property of metals by which they can be beaten in to thin sheets is called-
a. malleability
b. Ductility
c. conduction
d. Expansion
Ans . 1. (a)
2. Which one of the following is metal?
a. C
b. N
c. Na
d. O
Ans . 2. (c)
3. Which one of the following is non metal?
a. Zn
b. Al
c. Fe
d. N
Ans . 3. (d)
4. All materials shown property of malleability expect
a. Iron
b. Graphite
c. Aluminium
d. Silver
Ans . 4. (b)
5. Which one of the following is a good conductor of electricity?
a. Iron
b. Plastic
c. Wood
d. Glass
Ans . 5. (a)
6. The property of metal by which it can be drawn into wires is called
a. Conductivity
b. malleability
c. Ductility
d. Decorating
Ans . 6. (c)
7. The metals that produce ringing sounds, are said to be-
a. malleable
b. sonorous
c. Lustrous
d. hard
Ans . 7. (b)
8. Which metal is found in liquid state t room temperature?
a. Fe
b. Zn
c. Hg
d. Al
Ans . 8. (c)
9. The solution of ash of magnesium ribbon is-
a. Acidic
b. Basic
c. Neutral
d. All of these
Ans . 9. (b)
10. What is the product when sulphur reacts with oxygen?
a. Sulphuric acid
b. Sulphur trioxide
c. Sulphurous acid
d. Sulphur dioxide
Ans . 10. (d)

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