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) Pitch-blende
(b) Monazite Sand
(c) Limestone
(d) Hematite
The correct answers to the above question in:
Answer: (d)
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Read more chemistry gk Based General Science Questions and Answers
Question : 1
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.
Question : 2
Which one of the following is the softest?
a) Aluminium
b) Iron
c) Sodium
d) Copper
Answer »Answer: (c)
Question : 3
Which is the most reactive metal?
a) Calcium
b) Iron
c) Sodium
d) Potassium
Answer »Answer: (d)
Question : 4
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 : 5
Chemically ‘Plaster of Paris’ is
a) Calcium Carbonate
b) Calcium Oxide
c) Calcium Sulphate
d) Calcium Oxalate
Answer »Answer: (c)
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