Question

6) Expansion on heating and contraction on
cooling of metal is a
Choose the correct option from given below
(A)
Irreversible change
(B)
Chemical change
(C)
Reversible change
(D) All of these​

Answer 1

$\huge\frak\red{αnѕwєr}$

(c) rєvєrѕíвlє chαngє

mєtαlѕ єхpαnd σn hєαtíng αnd cσntrαct σn cσσlíng. duríng thє єхpαnѕíσn σr cσntrαctíσn, thє chєmícαl prσpєrtíєѕ σf thє mєtαl rєmαínѕ unchαngєd. ín вσth prσcєѕѕєѕ, thє mαtєríαl rєmαínѕ thє ѕαmє αnd nσ chєmícαl chαngє σr rєαctíσn tαkєѕ plαcє.

thє σnlч chαngє íѕ thє íntєrmσlєculαr ѕpαcíng whích íѕ α phчѕícαl chαngє.

⠀

❣️hσpє thíѕ hєlpєd чσu❣️

Answer 2

Answer:

It's option (B) reversible change is correct

Explanation:

Expansion on heating and contraction on

cooling of metal can be reverse that is again on heating we can convert it into original shape