Reversible and Irreversible Changes
When a salt is mixed with water it forms a
solution
medicines
food additive
preserver
solution
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Raw egg is completely different in shape, color, taste, smell fromA. boiled egg
B. fried egg
C. both a and b
D. organic egg
If sugar is heated it undergoes
A. reaction
B. evaporation
C. condensation
D. decomposition
Changes in matter takes place
A. in day
B. noon
C. night
D. all the time
Changes in matter can be observed upon
A. separating
B. filtering
C. mixing
D. heating
In case of chocolate the heating lead to changes which are
A. reversible
B. irreversible
C. same
D. constant
To fry or boil an egg we need
A. pan
B. heat
C. water
D. match stick
Oil and gas catch fire
A. easily
B. slowly
C. not at all
D. extinguisher
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