Advertisements
Advertisements
प्रश्न
Give an example for the elements derived from their Latin names.
Advertisements
उत्तर
| Element | Latin Name | Symbol |
| Copper | Cuprum | Cu |
| Lead | Plumbum | Pb |
| Potassium | Kalium | K |
| Iron | Ferrum | Fe |
| Mercury | Hydrargyrum | Hg |
| Sodium | Natrium | Na |
APPEARS IN
संबंधित प्रश्न
Classify the following substances into compounds and mixtures:
Name the substance you will add to speed up sedimentation.
Answer the following question:
When iron is mixed with sulphur at room temperature, it does not form a compound. Why?
Indicate whether the following statement is true or false:
Molecules can exist independently.
Tick (√) the correct alternative from the choice given for the following statement.
Atoms of different kinds combine to form molecules of
State what are radicals. Give the names of the radicals –
(a) NO3
(b) OH
(c) SO4
(d) CO3
Select the correct answer to the statement given below:
The chemical name for dinitrogen oxide [N20].
The diagram represents fractional distillation for the separation of mixtures. Answer the following :
- Can two immiscible liquids be separated by this process?
- Separation of liquids by this process is based on which physical property?
- If methyl alcohol & water are to be separated, which liquid would remain in flask ‘X’ after condensation.
- Give a reason for the above answer.
- State the purpose of the fractionating column in the apparatus.
Differentiate metals and non-metals.
How are elements classified?
