Question

Q.) When elements combine in proper proportions, they lose there original properties. It is due to :

(a) Chemical change
(b) Physical change
(c) Compound formation
(d) Both (a) & (c)​

Answer 1

Answer:

D)

Explanation:

Because in compounds the the original properties of elements do not retain

and form compounds

So your ans is D)

Answer 2

The correct option is d) Both a & c

Explanation:

• A chemical change can be described as a reaction in which two or more atoms combine to form a new compound. The properties of the new product will be different from the original elements.
• When elements combine , a new compound is formed as a result of the chemical change.
• Hence, both options (a) & (c) are correct.