1
VITEEE 2021
MCQ (Single Correct Answer)
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-0
Polonium has a half-life of 140 days. If we take $$20 \mathrm{~g}$$ of polonium initially then the amount of it that remains after 280 days is
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VITEEE 2021
MCQ (Single Correct Answer)
+1
-0
According to Bohr model of hydrogen atom, only those orbits are permissible which satisfy the condition
3
VITEEE 2021
MCQ (Single Correct Answer)
+1
-0
The Rutherford scattering experiment proves that an atom consists of
Questions Asked from Atoms and Nuclei (MCQ (Single Correct Answer))
Number in Brackets after Paper Indicates No. of Questions
VITEEE Subjects
Physics
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Physical Chemistry
Some Basic Concepts of Chemistry Atomic Structure Thermodynamics Chemical Equilibrium Ionic Equilibrium Liquid Solution Redox Reactions Surface Chemistry Solid State Electrochemistry Chemical Kinetics Nuclear Chemistry
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Periodic Table and Periodicity Chemical Bonding and Molecular Structure s-Block Elements p-Block Elements d and f Block Elements Metallurgy Coordination Compounds Environmental Chemistry
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