Download App

Is Matter Around Us Pure — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceIs Matter Around Us Pure1 Mark
MCQ
Which one of the following statements is incorrect:
  • A
    All elements are homogeneous
  • B
    Compounds made up of a number of elements are homogeneous
  • C
    A mixture is not always heterogeneous
  • ✓
    Air is a heterogeneous mixture
✓

Answer

Correct option: D.
Air is a heterogeneous mixture

All elements and compounds are homogeneous, as they are pure substances.
A mixture can be homogeneous or heterogeneous.
So, options $A, B$ and $C$ are correct statements.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q. [1 M]" from Is Matter Around Us Pure→Is Matter Around Us Pure — all question types→Science STD 9 question papers→Gujarat Board STD 9 question papers→Gujarat Board question paper generator→

Similar questions

Specific gravity of substance is:
→
Being healthy means:
→
Mass is a _______ quantity and weight is a _______ quantity:
→
A girl is pushing a box towards east direction. In which direction should her friend push the box so that it moves faster in the same direction?
→
Water stored in a dam possesses:
→
Milk does not provide:
→
If a ball is thrown upwards from the surface of earth:
→
Which one of the following set of phenomena would increase on raising the temperature?
→
An echo-sounder in a trawler (fishing boat) receives an echo from a shoal of fish $0.4s$ after it was sent. If the speed of sound in water is $1500\ m/s,$ how deep is the shoal$?$
→
Which of the following is a measurement of velocity:
→