Chemical and Physical change 2
Authored by Dinta Sunny
Chemistry
7th Grade
Used 15+ times
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Name the reaction in which heat is taken in.
Exothermic reaction
Endothermic reaction
Precipitation reaction
Brisk effervescence
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of these signs occur when potassium iodide reacts with lead nitrate?
Temperature change
Odour produced
Precipitate formed
Bubbles formed
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which is NOT an indication of a chemical change?
Emission of light or heat
Absorption of heat
Formation of precipitate
change in shape
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the term for an insoluble solid formed after a precipitation reaction?
Heat of reaction
Precipitate
Brisk Effervescence
Colour change
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Name the chemical reaction in which heat is given out.
Exothermic reaction
Endothermic reaction
Precipitation reaction
Brisk effervescence
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