Download App

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

Rajasthan BoardEnglish MediumSTD 9ScienceIs Matter Around Us Pure ?2 Marks
Question
Classify the following into elements and compounds:
  1. $H_2O$
  2. $He$
  3. $Cl_2$
  4. $CO$
  5. $Co$
✓

Answer

  1. $H_2O:$ Compound
  2. $He:$ Element
  3. $Cl_2:$ Element
  4. $CO: $ Compound
  5. $Co:$ Element

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→Rajasthan Board STD 9 question papers→Rajasthan Board question paper generator→

Similar questions

Steel sinks in water but a steel boat floats. Why?
→
Find the energy in kW h consumed in 10 hours by four devices of power 500W each.
→
Classify the following into true solutions and colloidal solutions:
Ink, Salt solution, Starch solution, Blood, Sugar solution.
→
A car falls off a ledge and drops to the ground in $0.5$ seconds.
Let $g = 10 \ ms^{-2},$ then
What is its speed on striking the ground?
→
Write advantages of beekeeping.
→
When a ball is thrown inside a mocking bus, does its kinetic energy depend on the speed of the bus? Explain.
→
What do you understand by the term ‘acceleration due to gravity of earth'?
→
What is an octet? How do elements reach an octet? 
→
Can a body have mass but no weight? Give reasons for your answer.
→
A boy weighing $40\ kg$ makes a high jump of $1.5m.$
  1. What is his kinetic energy at the highest point?
  2. What is his potential energy at the highest point? $(8 = 10\ m/s^2).$
→