CISCE Board - Class 8

Periodic Table, Bonding & Carbon question bank (Chemistry)

Practice 285 free CISCE Board - Class 8 Chemistry - Periodic Table, Bonding & Carbon questions with answers and step-by-step solutions.

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Q1.

Chemistry: What chemical principle is demonstrated in 'Matter: Kinetic Theory, Changes of State and Conservation of Mass'?

(A)
Conservation of mass, stoichiometry or periodic law (Matter: Kinetic Theory, Changes of State and Conservation of Mass)
(B)
Creation of matter from nothing
(C)
Arbitrary reaction
(D)
None of these
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Q2.

Atomic Structure: In 'Matter: Kinetic Theory, Changes of State and Conservation of Mass', the mass number $A$ of an atom equals:

(A)
Number of protons + Number of neutrons ($A = Z + N$) (Matter: Kinetic Theory, Changes of State and Conservation of Mass)
(B)
Number of electrons only
(C)
Difference of protons and neutrons
(D)
None of these
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