Monday, July 15, 2013

CBSE Class 8 - Science - CH4 - Metals and Non-Metals (MCQs)

Metals and Non-Metals
CBSE Class 8 - Science - CH4 - Metals and Non-Metals (MCQs)

MCQs

Q1: Whose reactivity is highest among the following metals?

(a) Copper
(b) Potassium
(c) Iron
(d) Zinc


Q2: The metal stored in kerosene due to its high reactivity with air and water is ...

(a) Magnesium
(b) Zinc
(c) Sodium
(d) Calcium


Q3: Materials having the properties of both metals and non metals are called _____.

(a) Metalloids
(b) Noble metals
(c) Alloys
(d) Mixtures



Q4: Metals are generally__________

(a) soft and ductile
(b) hard and brittle
(c) non-reactive and malleable.
(d) hard, ductile and malleable


Q5: Which non-metal is a good conductor of electricity?

(a) Phosphorus
(b) Sulphur
(c) Graphite
(d) Coal


Q6: Non metals are generally _____________.

(a) hard and ductile
(b) soft and brittle
(c) hard and brittle
(d) soft and ductile


Q7: A metal which is found in liquid state at room temperature is ...

(a) Sodium
(b) Mercury
(c) Potassium
(d) Aluminium


Q8: Iron can displace _______ from its salt solution.

(a) Zinc
(b) Sodium
(c) Potassium
(d) Copper



Answers:
1: (b) Potassium
2: (c) Sodium
3: (a) Metalloids
4: (d) hard, ductile and malleable
5: (c) Graphite
6: (b) soft and brittle
7: (b) Mercury
8: (d) Copper






7 comments: