SSC MTS EXAM

SSC

CHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which is NOT a chemical change?
A
Leaves changing colors in the fall
B
Iron rusting
C
Digesting Lunch
D
Ice Melting
Explanation: 

Detailed explanation-1: -Ice melting is not a chemical reaction because when an ice is melting there is no chemical change happening upon the ice. The water molecules are still the same, they are still water molecules.

Detailed explanation-2: -Melting is the phase change in the state of matter from solid to liquid. When something melts, it doesn’t change chemically, so melting is not a chemical change. It’s a physical change.

Detailed explanation-3: -(d) The melting of ice is a physical change.

There is 1 question to complete.