Advertisements
Advertisements
प्रश्न
One of the following does not undergo sublimation. This one is :
पर्याय
camphor
dry ice
silica
iodine
Advertisements
उत्तर
silica
Silica does not sublime on heating.
APPEARS IN
संबंधित प्रश्न
Define the term matter. What is it composed of?
Fill in the blank :
The state of matter with definite volume and definite shape is called______
Fill in the blank
Any matter which has a definite _______ but no definite shape is called a _______
What is Brownian motion? Draw a diagram to show the movement of a particle (like a pollen grain during Brownian motion.
What are pure substances ? Give two examples of pure substances.
Which of the following do not exhibit Tyndall effect ?
Starch solution, Sugar solution, Ink, Salt solution, Copper sulphate solution, Ammonium chloride solution, Fog, Smoke, Car exhausts.
How would you prepare a saturated solution of sodium chloride in water at 25°C ? What will happen if this solution is cooled to 10°C ?
What difference in the property of two miscible liquids enables their separation by fractional distillation ?
Name the process by which common salt is purified.
How would you separate iodine from a mixture of iodine and common salt ?
How will you separate a mixture of common salt, sulphur powder and sand ?
The technique which is used to separate particles of a solid suspended in a liquid quickly is called :
Differentiate between the-two characteristics of matter – ‘mass’ & ‘weight’.
Write a few lines on the blackboard with a chalk. Now observe the chalk. What changes do you see in the chalk?
Asmita went to buy an earthen pot. There she saw many things kept for sale.
From what substance has the potter made all the things?
Why wires cannot be drawn from materials such as stone or wood?
Celsius scale is a scale of temperature in which zero represents the melting point of ice and 100 represents the boiling point of water.
Intermolecular space is maximum in ______.
Write a scientific reason.
Lemon sherbat has a sweet, sour and salty taste and it can be poured in a glass.
Define the term matter.
