set 3 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) Glass
(b) Quartz
(c) Diamond
(d) Platinum
The correct answers to the above question in:
Answer: (c)
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Read more chemistry gk Based General Science Questions and Answers
Question : 1
Which one of the following is the correct sequence of the given substances in the decreasing order of their densities?
a) Gold > Mercury > Steel
b) Steel > Gold > Mercury
c) Steel > Mercury > Gold
d) Gold > Steel > Mercury
Answer »Answer: (a)
Question : 2
Which of the following reacts with cold water vigorously?
a) sodium
b) magnesium
c) carbon
d) sulphur
Answer »Answer: (a)
Question : 3
Match List-I with List-II:
List-I (Industrial Process) | List-II (Industry) |
A. Cracking | 1. Rubber |
B. Smelting | 2. Petroleum |
C. Hydrogenation | 3. Copper |
D. Vulcanization | 4. Edible Fats |
a) 2 3 4 1
b) 2 3 1 4
c) 3 2 1 4
d) 3 2 4 1
Answer »Answer: (a)
Question : 4
The heaviest natural element is
a) Mercury
b) Gold
c) Uranium
d) Calcium
Answer »Answer: (c)
Question : 5
Metals like Gold, Platinum which do not easily react are called
a) noble metals
b) active metals
c) dull metals
d) bright metals
Answer »Answer: (a)
Noble metals are those metals which do not react easily and lie at the bottom of the activity series.
Question : 6
Aluminium is used for making cooking utensils. Which of the following properties of aluminium are responsible for the same?
- Good thermal conductivity
- Good electrical conductivity
- Ductility
- High melting point
a) (ii) and (iii)
b) (i) and (ii)
c) (i) and (iii)
d) (i) and (iv)
Answer »Answer: (d)
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