Physical and Chemical Changes MCQ Questions Class 7 Science Chapter 6
NCERT MCQ Questions for Class 7 Science Chapter 6 Physical and Chemical Changes. Physical and Chemical Changes MCQ Questions with Answers from Class 7 Science.
Physical and Chemical Changes MCQ Questions Class 7 Science Chapter 6
Physical and Chemical Changes Multiple Choice Questions with Answers Class 7 Science Chapter 6 PDF is available.
1.) A change in which a susbstance undergoes a change in its physical properties is called ____ change ?
a) Chemical
b) physical
Ans. b) Physical
2.) In ___ changes new substances are produced ?
a) Chemical
b) physical
Ans. a) Chemical
3.) Digestion of food in our body is a ___ change ?
a) Chemical
b) physical
Ans. a) Chemical
4.) The hack-saw blade changed colour on heating is a ___ change ?
a) Chemical
b) physical
Ans. b) Physical
5.) Explosion of a firework is a ___ change ?
a) Physical
b) Chemical
Ans. b) Chemical
6.) Burning of wood is a ____ change ?
a) Physical
b) Chemical
Ans. b) Chemical
7.) Water changed its state is a ___ change ?
a) Physical
b) Chemical
Ans. a) Physical
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8.) The process of depositing a layer of zinc on iron is called ____ ?
a) Galvanisation
b) Crystallisation
Ans. a) Galvanisation
9.) The process of forming large crystals of pure substances from their solution is called ____ ?
a) Galvanisation
b) Crystallisation
Ans. b) Crystallisation
10.) The forming of large crystals of pure substances from their solution is a ____ change ?
a) Chemical
b) physical
Ans. b) Physical
11.) The chemical name of baking soda is ____ ?
a) Sodium hydrogencarbonate
b) Acetic acid
Ans. a) Sodium hydrogencarbonate
12.) The chemical name of vinegar is ____ ?
a) Sodium hydrogencarbonate
b) Acetic acid
Ans. b) Acetic acid
13.) ____ turned lime water milky ?
a) Carbon dioxide
b) Calcium Carbonate
Ans. a) Carbon dioxide
14.) Burning of magnesium ribbon is a ____ change ?
a) Physical
b) Chemical
Ans. b) Chemical
15.) To prevent rusting of iron by depositing a layer of ___ on iron ?
a) Zinc
b) Copper
Ans. a) Zinc
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