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Learn POLICE SI MCQs with answers [Page 12 of Department 122]
111) Which one is not the isotopes of hydrogen ?
(A) Protium
(B) Eritium
(C) Deuterium
(D) Tritium
Correct Answer - Option
(B)
No Explanation found. Add Explanation and get +2 points.
112) Radioactive isotope of hydrogen is
(A) Protium
(B) Deuterium
(C) Tritium
(D) All
Correct Answer - Option
(C)
No Explanation found. Add Explanation and get +2 points.
113) Mass of electron is
(A) 1.66 x 10^-24 g
(B) 6.023 x 10^-23 g
(C) 9.1 x 10^-28 g
(D) 9.1 x 10^-25 g
Correct Answer - Option
(C)
No Explanation found. Add Explanation and get +2 points.
114) Rutherford's scattering experiment related to the size of the
(A) nucleus
(B) atom
(C) electron
(D) neutron
Correct Answer - Option
(A)
No Explanation found. Add Explanation and get +2 points.
115) Isotopes of the same elements have
(A) same number of neutrons
(B) same number of protons
(C) same atomic mass
(D) different chemical properties
Correct Answer - Option
(B)
No Explanation found. Add Explanation and get +2 points.
116) Wavelength of which of the following colors of the visible spectrum of light are maximally absorbed by green plants
(A) green and yellow
(B) red and blue
(C) green and red
(D) blue and yellow
Correct Answer - Option
(B)
No Explanation found. Add Explanation and get +2 points.
117) The particle with 13 protons and 10 electrons is
(A) AI - atom
(B) AI3+ ion
(C) nitrogen isotope
(D) none of these
Correct Answer - Option
(B)
No Explanation found. Add Explanation and get +2 points.
118) Al3+ is iso electronic with
(A) F-
(B) S2-
(C) Al
(D) Br-
Correct Answer - Option
(A)
No Explanation found. Add Explanation and get +2 points.
119) Rate of diffusion of a gas is
(A) directly proportional to its density
(B) directly proportional to its molecular mass
(C) directly proportional to the square of its molecular mass
(D) inversely proportional to the square root of its molecular mass
Correct Answer - Option
(D)
No Explanation found. Add Explanation and get +2 points.
120) What are the physical state of dispersion medium of a cloud ?
(A) Solid
(B) Liquid
(C) Gas
(D) None of these
Correct Answer - Option
(C)
No Explanation found. Add Explanation and get +2 points.
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