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प्रश्न
Select the correct answer from the choice given below.
A group of atoms of elements
विकल्प
ion
radical
combining power
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उत्तर
radical
संबंधित प्रश्न
Tick the most appropriate answer.
How many times is a proton heavier than an electron?
- 1500
- 1800
- 1840
- none of these
Define: Compounds
Give one example for the following types of mixtures:
liquid-gas homogenous mixture
Indicate whether the following statement is true or false:
Metals can be polished.
Indicate whether the following statement is true or false:
Molecules combine to form atoms
Indicate whether the following statement is true or false:
Ozone is a triatomic molecule
Give the name of the radical - CO3
Select the correct answer from A, B, C, D & E for the statement given below :
A mixture consisting of elements & a compound.
Give a reason for the following statement :
Brass & bronze are examples of mixtures, while copper sulphate & lead nitrate are examples of compounds.
Match the following:
| 1. | Co2 | a. | Robert Boyle |
| 2. | Sulfur | b. | Making mobile phones |
| 3. | Element | c. | triatomic molecule |
| 4. | Gallium | d. | Polyatomic molecule |
