Matter in Our Surroundings
Which one of the following is a pseudo solid?
(1) Calcium fluoride
(2) Glass
(3) Sodium chloride
(4) All of the above
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 2 Solution : -. |
Matter in Our Surroundings
Cheese is an example of which type of colloid?
(1) Gel
(2) Foam
(3) Sol
(4) Solid sol
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 1 Solution : -. |
Matter in Our Surroundings
Which of the following is the most precise for measuring the volume of a liquid?
(1) Test tube
(2) Graduated cylinder
(3) Burette
(4) Volumetric flask
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 4 Solution : -. |
Matter in Our Surroundings
The fourth state of matter is :
(1) solid
(2) fluid
(3) liquid
(4) plasma
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 4 Solution : -. |
Matter in Our Surroundings
Miscible liquid among the following is
(1) alcohol in water
(2) milk
(3) oil in water
(4) kerosene in water
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 1 Solution : -. |
Matter in Our Surroundings
On heating a liquid, its surface tension:
(1) increases
(2) Decreases
(3) remains same
(4) is reduced to zero
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 2 Solution : -. |
Matter in Our Surroundings
The dispersion of any liquid in a liquid is known as
(1) gel
(2) gum
(3) gelatin
(4) emulsion
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 4 Solution : -. |
Matter in Our Surroundings
Which process is used to separate a mixture of two miscible liquids A & B having boiling points 56°C and 65°C respectively?
(1) Distillation
(2) Fractional distillation
(3) Sublimation
(4) Steam distillation
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 2 Solution : -. |
Matter in Our Surroundings
Which of the following can be expressed in grams per litre of a gas?
(1) Density
(2) Equilibrium constant
(3) Molar mass
(4) Freezing point
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 1 Solution : -. |
Matter in Our Surroundings
Name the process associated with the following.
A potassium permanganate crystal is in a beaker and water is poured into the beaker with stirring.
(1) Diffusion
(2) Dissolution
(3) Sublimation
(4) none
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 2 Solution : -. |
