set 1 MCQ Questions & Answers Detailed Explanation
MOST IMPORTANT general science mcq - 4 EXERCISES
The following question based on metals, non metals, minerals, ores, properties, uses topic of general science mcq
(a) Ca
(b) Na
(c) K
(d) Al
The correct answers to the above question in:
Answer: (d)
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Question : 1
Consider the following elements:
- Copper
- Gold
- Platinum
- Silver
a) (i), (ii) and (iv)
b) (i) and (ii)
c) (ii) and (iii)
d) (iii) and (iv)
Answer »Answer: (a)
Cu, Au, and Ag are known as coinage metals and occur free in nature.
Because of nobility, they are frequently found in their native state.
Question : 2
When iron is left exposed to open air, it gets rusted. Which constituent(s) of air is /are responsible for rusting iron?
- Oxygen gas present in the air
- Moisture present in the air
- Carbon dioxide gas present in the air
a) (i) and (ii)
b) (i) only
c) (ii) only
d) (ii) and (iii)
Answer »Answer: (a)
Both oxygen and moisture present in air cause rusting of iron.
Question : 3
Which of the following is the electron configuration of a metallic element?
a) 2, 8, 7
b) 2, 8, 8
c) 2, 8
d) 2, 8, 8, 2
Answer »Answer: (d)
Question : 4
Which of the following is not a atomic characteristics of metal –
a) ductile
b) malleable
c) electropositive nature
d) none of these
Answer »Answer: (d)
All are characteristics of metal.
Question : 5
In which of the following industries is mica used as a raw material?
a) Toys
b) Glass and pottery
c) Iron and steel
d) Electrical
Answer »Answer: (d)
Question : 6
Which one of the following is also called Stranger Gas?
a) Neon
b) Xenon
c) Argon
d) Nitrous oxide
Answer »Answer: (b)
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