Advertisements
Advertisements
प्रश्न
Out of a colloid, solution and a suspension :
which one has the largest particles ?
Advertisements
उत्तर
Suspension has the largest particles.
APPEARS IN
संबंधित प्रश्न
Define the following term of Atom .
All kinds of matter
Which of the following materials fall in the category of a “pure substance”?
- Ice
- Milk
- Iron
- Hydrochloric Acid
- Calcium oxide
- Mercury
- Brick
- Wood
- Air
What is the other name for impure substances ? Give two examples of impure substances.
What is meant by (i) elements (ii) compounds, and (iii) mixtures ?Write down the names of two elements, two compounds and two mixtures.
Classify the following into elements, compounds and mixtures :
arble, Air, Gold, Brass, Sand, Diamond, Graphite, Petroleum, Common salt, Sea-water, Chalk
Which of the following are compounds ?
- CO
- No
- NO
- Co
If 25 mL of acetone is present in 150 mL of its aqueous solution, calculate the concentration of solution.
Fill in the following blank :
Milk is a .................... solution but vinegar is a .................... solution.
What is the difference between solutions and colloids ?
Define Sol and give one example.
Define the emulsion. Give one example.
9.72 g of potassium chloride dissolves in 30 g of water at 70°C. Calculate the solubility of potassium chloride at that temperature.
What difference in the property of two miscible liquids enables their separation by fractional distillation ?
State whether the following statement are true or false :
Salt and water can be recovered from an aqueous salt solution by the process of evaporation.
Name the process which is used in milk dairies to separate cream from milk.
How will you separate a mixture containing sand and sugar ?
The material which is added to water during purification process at the water works so as to disinfect it is :
The liquid air has three components X, Y and Z whose boiling points are : –186°C, –183°C and –196°C,
respectively. When liquid air is fed into a tall fractional distillation column from near its bottom and warmed
up slowly :
(a) Which component will be collected from near the bottom of the fraction distillation column ? Why ?
(b) Which component will be collected from the top part of the fractional distillation column ? Why ?
(c) Which component will be collected from the middle part of the fractional distillation column ? Why ?
(d) What could the component X, Y and Z be ?
Higher the temperature, the higher the kinetic energy of particles.
