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Subjects
Science CBSE
Class 9
Is Matter Around Us Pure?
Textbook based HOTS
19.
Multiple Choice Question Answer XX
Exercise condition:
2
m.
1.
Brass contains
Aluminium and nickel
Nickel and iron
Zinc and copper
Gold and copper
2.
Which of the following is not a chemical change
Digestion of food
Boiling of water
Burning of magnesium ribbon in oxygen to form magnesium oxide
Electrolysis of water
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