Subject :NSO Class : Class 6
Identify the chemical changes in the given list.
I. Photosynthesis
II. Slaking of lime
III. Burning of coal
IV. Glowing of a blub
V. Expansion of a metal
AI, II and III only
BIV and V only
CI and III only
DI and IV only
Slaking Of Lime is Physical Change not Chemical Change.
Ans 1:
Class : Class 6
it is chemical change
Ans 2:
Class : Class 8
Please explain!
Ans 3:
Class : Class 6
AN ENTIRELY NEW SUBSTANCE IS FORMED (Ca(OH)2, HENCE CHEMICAL CHANGE.