Question

Which of the following materials fall in the category of a 'pure substance'? Give reasons
(a) Ice
(b) Milk
(c) Iron
(d) Hydrochloric acid
(e) Calcium oxide
(f) Mercury
(g) Brick
(h) Wood
(i) Air.

Answer 1

Answer:

air,wood,mercury,hydrochloric acid,milk

Answer 2

Dear Student,

◆ Answer -

Following are pure substances

• (a) Ice
• (c) Iron
• (d) Hydrochloric acid
• (e) Calcium oxide
• (f) Mercury

● Pure substance -

• Pure substance is a substance having constant chemical composition and characteristic properties.
• They are formed by single type of atom/molecule/compound.
• For example, water, table salt, pure metal.

Thanks dear. Hope this helps you..