Advertisements
Advertisements
Question
How will you differentiate between a suspension and a colloid ?
Advertisements
Solution
The particles of a suspension cannot pass through a filter paper whereas particles of colloids can easily pass through filter paper. Colloidal solutions are quite stable whereas suspensions are very unstable.
APPEARS IN
RELATED QUESTIONS
Write true or false for each statement. Rewrite the false statement correctly.
Matter cannot exist in different states.
Which of the following substances are elements ?
Water, Salt, Mercury, Iron, Marble, Diamond, Wood, Nitrogen, Air, Graphite, Hydrogen, Oxygen, Sugar, Chlorine
Define a compound. Give two points of evidence to show that sodium chloride is a compound.
Name a metal which can be easily cut with a knife.
What are (i) metals (ii) non-metals, and (iii) metalloids ? Give two examples each of metals, non-metals and metalloids.
One of the following substances is neither a good conductor of electricity nor an insulator. This substance is :
Iron powder and sulphur powder were mixed together and divided into two parts A and B. When part A was heated strongly over a burner, then a substance C was formed. The part B was, however, not heated at all. When dilute hydrochloric acid was added to substance C, then gas D was evolved and when dilute hydrochloric acid was added to part B then gas E was evolved.
- What type of substance is B ?
- What type of substance is C ?
- Name the gas (i) D, and (ii) E ?
- State one characteristic property of gas D.
- Write one test to identify gas E.
What is the name of the clear liquid formed when a solid dissolves in a liquid ?
How much water should be mixed with 12 mL of alcohol so as to obtain 12 % alcohol solution ?
What will happen if a saturated solution is :
- heated
- cooled
What is a suspension ? Give two examples of suspensions.
State whether the following statement are true or false :
Alcohol can be separated from a mixture of alcohol and water by a separating funnel.
You are given a mixture of iodine in alcohol called tincture iodine. Which method will you use to recover both, iodine as well as alcohol, from this mixture ?
Which one of the following scrap metal cannot be separated by magnetic separation ?
Explain the meaning of the term matter with special reference to the term ‘substance’.
A standard sheet of paper is about ______ of atoms thick
Which among the following is not a matter?
Which statement is not correct for a mixture
Compressibility of solids: ______.
Define the term matter.
