Advertisements
Advertisements
प्रश्न
Multiple choice question.
A kind of matter which can sublime is
विकल्प
water
plastic
milk
iodine
Advertisements
उत्तर
iodine
APPEARS IN
संबंधित प्रश्न
Write your observation and conclusion for the following:
Ice is kept at room temperature.
Why are liquids and gases called as fluids.
Write true or false for each statement. Rewrite the false statement correctly.
Solids and liquids can flow.
What is a molecule?
What is volume?
Give one difference between atoms and molecules.
Define Element.
Match the following
| Column A | Column B |
| (a) Solids | (i) Can flow in all directions |
| (b) Sublimation | (ii) The temperature at which a liquid changes into its gaseous state. |
| (c) Boiling point | (iii) Any number of free surfaces. |
| (d) Gases | (iv) Gaps between particles. |
| (e) Intermolecular space | (v) Changes of state from solid to gas. |
In one sample of brass, the following ingredients were found: copper (70%) and zinc (30%). Identify the solvent, solute and solution from these.
Give a reason for the following:
An empty tumbler lowered into a glass beaker containing water, on tilting shows bubbles of air coming out, but when not tilted, no bubbles are seen.
