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प्रश्न
Select the correct answer from the choice given below.
An element which is a poor conductor of heat
विकल्प
copper
carbon
aluminum
उत्तर
carbon
संबंधित प्रश्न
Tick the most appropriate answer
Solutions are
- heterogeneous mixtures.
- compounds
- homogeneous mixtures.
- elements
Name: the Hardest Naturally Occurring Substance
Fill in the blank
A diatomic gaseous element is _______.
Complete the statement given below by filling in the blanks with the correct words.
From the elements – He, Br, Pt, and O; the element which is metallic is ____, an inert element is ____, forms a triatomic molecule is ____, is liquid at room temperature is_ ___.
Write the names of elements from the following symbol:
Cd
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.
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.
______ is a mixture of gases.
Complete the table:
| Element | Latin Name | Symbol |
| Mercury | ______ | Hg |
| Lead | Plumbum | ______ |
| Iron | ______ | Fe |
| Potassium | Kalium | ______ |
How are elements classified?
