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) Calcium Carbonate
(b) Calcium Oxide
(c) Calcium Sulphate
(d) Calcium Oxalate
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 of the following metals reacting with sodium hydroxide solution produce hydrogen gas?
- Cu
- Al
- Fe
- Zn
a) A and D
b) B and D
c) B and C
d) B only
Answer »Answer: (a)
Question : 2
Iron is obtained from
a) Pitch-blende
b) Monazite Sand
c) Limestone
d) Hematite
Answer »Answer: (d)
Question : 3
The only metal that is liquid at room temperature is -
a) zinc
b) mercury
c) sodium
d) tungsten
Answer »Answer: (b)
Mercury is the only element even being metal is liquid at room temperature.
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