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प्रश्न
Explain the difference between Atoms and molecules.
उत्तर
| Atoms | Molecules | |
| 1 | Atoms are the smallest particles of an element that can participate in a chemical reaction. | Molecules are the smallest parts of an element or compound, which exist independently. |
| 2 | They do not break up during chemical reactions. | They break up during chemical reactions. |
| 3 | They may or may not exist in a free state. | They exist in free forms. |
संबंधित प्रश्न
Give Two Examples for Each of the Following: Inert Gases
Name: the Hardest Naturally Occurring Substance
Indicate whether the following statement is true or false:
Metals reflect light and are good conductors of electricity
Complete the statement with the correct words.
Acid’s are chemicals which are _____ in taste and derived from plants and ________.
Complete the statement given below by filling in the blank with the correct word.
From the elements nitrogen, chlorine, bromine, the element present in the atmosphere is ________.
Select the correct answer from A, B, C, D & E for the statement given below :
A noble gas.
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.
Non-metal conducting electricity :______ :: Metal conducting electricity : Copper
Give two example of elements.
Name the element which is used for making computer chips.
