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General Knowledge - Chemistry

Exercise : Chemistry - Section 1
  • Chemistry - Section 1
31.
The number of waves in n x 10th Bohr's orbit are
n2
n
n-2
n3
Answer: Option
Explanation:
No answer description is available. Let's discuss.
32.
The mass of one Avogadro number of helium atom is
1.00 gram
4.00 gram
8.00 gram
4 x 6.02 x 1023 gram
Answer: Option
Explanation:
No answer description is available. Let's discuss.
33.
The items amenable to detection by soft x-rays are
contrabands
lead in bullets
narcotics
genuine coins from counterfeit coins
Answer: Option
Explanation:
No answer description is available. Let's discuss.
34.
The material which can be deformed permanently by heat and pressure is called a
thermoplastic
thermoset
chemical compound
polymer
Answer: Option
Explanation:
No answer description is available. Let's discuss.
35.
The mass number of a nucleus is
always less than its atomic number
the sum of the number of protons and neutrons present in the nucleus
always more than the atomic weight
a fraction
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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