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General Knowledge - Chemistry

Exercise : Chemistry - Section 1
  • Chemistry - Section 1
51.
The ionisation energy of hydrogen atom in the ground state is x KJ. The energy required for an electron to jump from 2nd orbit to 3rd orbit is
5x/36
5x
7.2 x
x/6
Answer: Option
Explanation:
No answer description is available. Let's discuss.
52.
The major constituent of air is
nitrogen
carbon dioxide
oxygen
hydrogen
Answer: Option
Explanation:
No answer description is available. Let's discuss.
53.
The main chemical constituent of clay is
silicon oxide
aluminium borosilicate
zeolites
aluminium silicate
Answer: Option
Explanation:
No answer description is available. Let's discuss.
54.
The mineral containing both magnesium and calcium is
magnesite
calcite
carnallite
dolomite
Answer: Option
Explanation:
No answer description is available. Let's discuss.
55.
The metal does not give H2 on treatment with dilute HCL is
Zn
Fe
Ag
Ca
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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