Q. 164.1( 10 Votes )
Classify the foll
(i) Physical change
Beating of aluminium metal to make aluminium foil consist of a change in only shape and size.
(ii) Chemical change
Digestion of food involves various chemical reaction inside our stomach.
(iii) Physical change
Cutting off a log of wood into pieces just changes its physical properties like shape and size. Therefore, it is a physical change.
(iv) Chemical change
Crackers contains substances which are explosive and during burning explosive reaction took place. Hence, it is a chemical change.
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