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General Knowledge - Chemistry

Exercise : Chemistry - Section 1
  • Chemistry - Section 1
36.
The inexpensive and commonly used variety of glass is called soda glass. It is called so because
was used initially for making bottles of soda(carbonated drink)
is made using soda(sodium carbonate)
was initially used for storing sodium carbonate
is made using soda lime
Answer: Option
Explanation:
No answer description is available. Let's discuss.
37.
The gas used in the manufacture of vanaspati from vegetable oil is
hydrogen
oxygen
nitrogen
carbon dioxide
Answer: Option
Explanation:
No answer description is available. Let's discuss.
38.
The ionic radii of N3-, O2-, F- and Na+ follows the order
N3- > O2- > F- > Na+
N3- > Na+ > O2- > F-
Na+ > O2- > N3- > F-
O2- > F- > Na+ > N3-
Answer: Option
Explanation:
No answer description is available. Let's discuss.
39.
The graphite rods in the nuclear reactor
react with U to release energy
produce neutrons
undergo combustion which triggers the nuclear fission
convert fast moving neutrons into thermal neutrons
Answer: Option
Explanation:
No answer description is available. Let's discuss.
40.
The first metal used by man was
iron
copper
gold
bronze
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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