Download App

Science true or false

Is Matter Around Us Pure · MP Board (MPBSE) STD 9 (Madhya Pradesh - English Medium). 6 questions.

Questions

true or false

🎯

Test yourself on this topic

6 questions · timed · auto-graded

Question 11 Mark
Gases can be liquified at low temperature and low pressure.
Answer
False.
Gas cannot be liquefied by compression unless its temperature is below the critical value when it will be considered a vapour. Similarly, cooling will liquefy a gas only if the pressure is above the critical. Conversely, a liquid will boil at low pressure even with temperature held constant.
View full question & answer→
Question 21 Mark
State whether the following statements are true or false:
  1. Bread is an example of solid foam.
  1. Sponge is an example of solid sol.
What type of colloids are bread and sponge?
Answer
  1. True.
  2. False.
View full question & answer→
Question 51 Mark
Sea water is a mixture.
Answer
True.
Sea water is a homogeneous mixture of water and many soluble salts of sodium, calcium, magnesium, potassium etc. Sodium chloride is the largest component among the salts in sea water.
View full question & answer→
Question 61 Mark
State whether the following statements are true or false: Alcohol can be separated from a mixture of alcohol and water by a separating funnel.
Answer
False.
View full question & answer→
Generate Paper FreeAll Is Matter Around Us Pure topics
true or false - Science STD 9 Questions - Vidyadip