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Chemistry 1488 MCQs [All-Courses]

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oost your exam preparation with our Chemistry MCQs designed for PPSC, FPSC, NTS, OTS, PTS, AJKPSC, BPSC, KPPSC, PMS, CSS, and all competitive exams.
Our content covers Basic Chemistry, Atomic Structure, Periodic Table, Chemical Reactions, Acids & Bases, Organic Chemistry, and everyday chemical concepts.

All Topics  1488

Rutherford bombarded _________________ particles in discovery of nucleus?
A Gamma-rays
B Alpha-rays
C Beta-rays
D X-rays
Correct Answer: Alpha-rays
Decrease in oxidation number is called__________________?
A oxidation
B reduction
C oxidation-reduction
D all of above represent same entity
Correct Answer: reduction
Charge of electron was measured by__________________?
A J.J Thomson
B Millikan
C Rutherford
D Perrin
Correct Answer: Millikan
Reaction at anode is called________________?
A oxidation
B reduction
C redox
D decomposition
Correct Answer: oxidation
Free neutron changes into proton with the emission of__________________?
A Neutrino
B Electron
C Both A & B
D Meson
Correct Answer: Both A & B
In electrolytic solution conductance of electricity is due to _____________________?
A free electrons
B ions
C metals
D electrodes
Correct Answer: ions
Increase in atomic number is observed during_________________?
A Alpha emission
B Beta emission
C Both A & B
D Radioactivity
Correct Answer: Beta emission
The number of fundamental particles in an atom of the lightest isotope carbon are_______________?
A 6
B 12
C 18
D 20
Correct Answer: 18
Which of the following is true in the case of Zn-Cu cell ?
A The flow of electrons takes place from copper to zinc
B E0red of copper electrode is less than that of zinc electrode
C Zinc acts as an anode and copper as cathode
D All are correct
Correct Answer: Zinc acts as an anode and copper as cathode
Atom cannot be divided into simple unitstheorized by________________?
A Rutherford
B Dalton
C Bohr
D Schrodinger
Correct Answer: Dalton
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