Matter in Our Surroundings
The decreasing order of densities of solids, liquids, and gases for a given mass is:
(1) solid > gases > liquids
(2) gases > solids > liquids
(3) liquids > gases > solids
(4) solids > liquids > gases
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 4 Solution : -. |
Matter in Our Surroundings
The interparticle attractive force ______ with increasing distance between particles.
(1) increases
(2) decreases
(3) increases moderately
(4) none
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 2 Solution : -. |
Matter in Our Surroundings
A specific temperature and pressure where solid, liquid, and gas phases exist simultaneously, is called:
(1) the point of equilibrium
(2) the triple point
(3) the freezing point
(4) the point where reactants first form products
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 2 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
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
Two identical beakers labeled as (X) and (Y) contain 100 cm3 of water each at 20oC. To the water in the beaker (X), 100g of water at 0o C was added and stirred to mix thoroughly. To the beaker (Y), 100g of ice at 0oC was added and stirred till it melted into water. The water in the beaker (Y) will be:
(1) hotter than water in beaker X
(2) colder than water in beaker X
(3) heavier than water in beaker X
(4) lighter than water in beaker X
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 2 Solution : -. |
Matter in Our Surroundings
Which of the following is made by hydrolysis of starch ?
(1) glucose
(2) fructose
(3) sucrose
(4) maltose
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 1 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
In a substance, particles vibrate so fast that their fixed position break down and then they move freely. It represents:
(1) a relationship between absolute temperature and the kinetic energy of particles
(2) It represents relationship between volume and temperature at constant pressure
(3) a state in which the liquid and gas phases are in equilibrium
(4) solid phase changing to the liquid phase
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 4 Solution : -. |
Matter in Our Surroundings
Which of the following represents correct statement?
(1) The inter-molecular force of attraction between the molecules in a liquid is less when compared to solids.
(2) The inter-molecular force of attraction between the molecules in a liquid is more when compared to solids.
(3) The inter-molecular force of attraction between the molecules in a liquid is either more or less when compared to solids.
(4) There is no inter-molecular force of attraction between the molecules in a liquid.
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 1 Solution : -. |
