89. in which of the following sentences is or are correct? (a) Rusting is a chemical change because a new substance is formed
(b) Beating of Aluminium metal to make Aluminium foil, is a physical change
(c) Digestion of food is a chemical change (d) All the above
Answers
Answered by
0
Explanation:
(d) all the above
(a) because in rusting the red substance formed so it is a chemical change
(b) here it not ne reversible but composition is same as block of aluminium is made into a thin sheet is not possible
(c) as the food is giving energy to us new substance
Similar questions
Physics,
10 hours ago
Computer Science,
10 hours ago
Geography,
10 hours ago
Math,
19 hours ago
Science,
19 hours ago
Biology,
8 months ago
Math,
8 months ago
India Languages,
8 months ago