Question

3.
A few changes are listed in the box :
i) Cutting of hair
ii) Melting of Ice bar
iii) Adding baking to vinegar
iv) Spoiling of food
v) Bending of a piece of metal on heating
vi) Decomposition of old leaves vii) Shredding of paper
Which of the following represents? Their correct classification?
Physical (Irreversible) Physical (Reversible) Chemical(Irreversible)
А.​

Answer 1

Answer:

option 1 physical irreversible, option 2,5,7 physical reversible, option 3 , 4, 6 are chemical irreversible