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
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
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 : -. |
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 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
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
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 : -. |
