Download App

Is Matter Around Us Pure? — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceIs Matter Around Us Pure?2 Marks
Question
State two reasons for supposing that brass is a mixture and not a compound.
✓

Answer

Brass is a mixture because:
  1. It shows the properties of its constituents, copper and zinc.
  2. It has a variable composition.

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 "Que-Ans (Each of 2 Mark )" 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

As an incharge of a grain store, how will you find out the presence of pests?
→
Why does a gas fill a vessel completely?
→
Define relative density. What is the SI unit of relative density?
→

Name the following: (a) Kitchen of a cell; (b) Power house of cell.

→
Classify the following into metals, non-metals and metalloids:
Silicon, Mercury, Diamond, Sulphur, Iodine, Germanium, Sodium, Carbon, Magnesium, Copper, Boron, Helium.
→
A $\frac{1}{2}\text{kg}$ sheet of tin sinks in water but if the same sheet is converted into a box or boat, it floats. Why?
→

Name the following:

  1. Free living platyhelminthes.
  2. Scientific name of pork tape worm.
→
Calculate the mass of 12.044 × 1025 molecules of oxygen(O2).
→
State one property in which a solution of sugar in water resembles a mixture of sugar and sand, and one property in which it differs from it.
→
Define density. What is the SI unit of density?
→