User Forum

Subject :NSO    Class : Class 6

Expansion on heating, contraction on cooling and change of state is

(A) Chemical change

(B) Permanent change

(C) Reversible change

(D) Irreversible change.

Ans 1:

Class : Class 7
C) reversible change

Ans 2:

Class : Class 8
Reversible change

Ans 3:

Class : Class 6
c

Post Your Answer