Question

Which of the following is not a chemical change?
(A) Changing of milk into curd
(B) Freezing of water
(C) Burning of paper
(D) Mixing of iron filling & sand
a. (B) and (D) are correct
b. All of these
c. (A) and (B) are correct
d. (A). (B) and (C) are correct​

Answer 1

$\huge\mathbb{\pink{ANSWER ♡- }}\star{}$

Freezing of water and

Mixing of iron filling & sand

So, option (a) is the correct answer

Answer 2

Answer:

Option a. B and D are correct is the right option.

explanation:

Freezing of water - ice. Ice can be melted to water...thus physical change.

Mixing of iron filings and sand - It can be separated with the help of magnet.

hope it helps you!