Exam Category
Chemistry
Showing 556 questions & PYQs organized by topics.
Chemistry
Matter, Atom and Molecules
10 Topics
01
The nucleus model of the atom was first discovered by:
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02
Which process best explains how water droplets form on the outer surface…
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03
The balanced reaction for the following chemical reaction is: Barium sulphate +…
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04
The formula unit mass of CaO is _______.
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05
The number of iron atoms in a piece of iron weighing 2.8…
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06
When iron filings are mixed with sulfur powder and the mixture is…
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07
Which of the following elements has the maximum number of atoms in…
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08
The electronic configuration of an element is 2, 8, 5. Name the…
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09
The molecular mass of a compound is 63u. If it contains one…
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10
What is the total number of shells involved in electronic configuration of…
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