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प्रश्न
The first letter of an element is always written in ______ letter.
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उत्तर
The first letter of an element is always written in capital letter.
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संबंधित प्रश्न
Match the columns.
| column A | column B |
|
1. to separate grain from chaff |
a. filtration |
| 2. to saparate sawdust from water | b. sedimentation and deeantation |
| 3. to separate iodine from sodium chloride | c. winnowing |
| 4. to separate iron fillings from sand | d.sublimation |
|
5. it is used to separate sand and water |
e maganetic separation |
|
|
f .handpicking |
Give two examples of Metalloids.
What is meant by H20 and 3H2O
Fill in the blank
A metal which is a liquid at room temperature is _______.
Classify substances into pure and impure substances in the form of a chart or tabulation.
Select the correct answer from A, B, C, D & E for the statement given below :
A non-metal that is lustrous.
Give a reason for the following statement :
The filter paper made into a cone & placed in a funnel for filtering out the solid particles in a solid-liquid mixture should be moistened before placing it.
What are elements? What are they made of?
Match the following:
| 1. | Co2 | a. | Robert Boyle |
| 2. | Sulfur | b. | Making mobile phones |
| 3. | Element | c. | triatomic molecule |
| 4. | Gallium | d. | Polyatomic molecule |
Higher-Order Thinking questions:
Why is hydrogen considered an element?
