Advertisements
Advertisements
प्रश्न
Classify the following into elements and compounds :
- H2O
- He
- Cl2
- CO
- Co
उत्तर
| Compounds | Elements |
| H2O, CO | He, Co, Cl2 |
APPEARS IN
संबंधित प्रश्न
Gases have definite volume but no definite shape.
Honey is more viscous than water. Can you suggest why?
During respiration, glucose and oxygen enter our body cells and waste products carbon dioxide and water leave the body cells by the process of :
What elements do the following compounds contain ?
Sugar, Common salt
Give reason why graphite is used for making elecrode in a dry cell.
Name a non-metal :
- which is lustrous
- which is required for combustion
- whose one of the allotrophic forms is a good conductor of electricity. Name the allotrope.
- other than carbon which shows allotropy
- which is known to form the largest number of compounds
On the basis of composition of matter, milk is considered to be :
How much water should be mixed with 12 mL of alcohol so as to obtain 12 % alcohol solution ?
Define Sol and give one example.
Define Foam Give one example.
Which of the following can be called a suspension ?
State whether the following statement are true or false :
Alcohol can be separated from a mixture of alcohol and water by a separating funnel.
Name the process by which common salt is obtained from sea-water.
The boiling point of liquid argon is :
Explain the meaning of the term ‘matter’.
Asmita went to buy an earthen pot. There she saw many things kept for sale.
How did she identify what she needed?
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?
______ is not made of matter.
Solid is an arrangement of particles ______.
Write a scientific reason.
Lemon sherbat has sweet, sour and salty taste and it can be poured in a glass.
