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प्रश्न
Select the correct name from the choices given below for the following case.
A water-soluble cleaning agent – not inactivated by hard water.
विकल्प
Soap
Detergent
Cleanser
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उत्तर
Detergent
संबंधित प्रश्न
What is ‘Philosopher’s stone’?
Name six such products, which we use daily.
How is the knowledge of chemistry important to mankind?
Match the following scientists in column A with their discoveries or contributions in column B.
| Column A | Column B | ||
| (a) | Marie Curie | (i) | Safety Lamp |
| (b) | John dalton | (ii) | Helium |
| (c) | William Ramsey | (iii) | Nobel Prize Winner (two times) |
| (d) | Sir Humphry Davy | (iv) | Atomic Theory |
State the functions of the following basic glass apparatus:
Beaker
State the function of
The wooden handle at the end of the test tube holder.
Select the correct name from the choices given below for the following case.
The branch of Science which deals with the different forms of energy e.g. light and sound.
Select the correct name from the choices given below for the following case.
The branch of Chemistry which includes a study of specific carbon compounds – built up mainly carbon and hydrogen.
Select the correct name from the choices given below for the following case.
A substance which absorbs moisture and keeps the skin dry and free from rashes.
Give reasons for the following
Alchemy was considered a pseudoscience.
