Class 7

Physical and Chemical Changes question bank (Science)

Practice 71 free Class 7 Science - Physical and Chemical Changes questions with answers and step-by-step solutions.

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Q1.

What is the fundamental scientific concept underlying 'Rusting of Iron and Prevention (Galvanisation)' in 'Physical and Chemical Changes'?


(A)
Empirical natural phenomena, structures, and processes defined in Rusting of Iron and Prevention (Galvanisation)
(B)
Fictional stories
(C)
Ancient superstitions
(D)
None of these
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Q2.

Which laboratory instrument or tool is commonly used to study 'Rusting of Iron and Prevention (Galvanisation)'?


(A)
A typewriter
(B)
Appropriate apparatus (e.g. microscope, test tube, thermometer, or meter scale for Rusting of Iron and Prevention (Galvanisation))
(C)
A music player
(D)
None
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