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प्रश्न
Write the properties of this substance.
Coal
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उत्तर
- Coal is a hard substance.
- It is a fossil fuel that is readily combustible.
- It serves as an energy source.
- It is characterized by the predominant presence of carbon.
संबंधित प्रश्न
Write the properties of this substance.
Glass
Write the properties of this substance.
Sugar
Write the properties of this substance.
Pen
Very Short Answer Type Question:
Name two gases which are insoluble in water.
Long Answer Type Question:
Write an experiment to show that our palm is translucent.
Find the odd one out from the following:
Find the odd one out from the following:
Find out the names of three metals and three non-metals from the box given as figure.
During summer holidays, a group of children collected a lump of salt, green grass, broken glass piece, a small thermocol box, pen, iron nail, glass marbles, hair, naphthalene ball, a piece of sugar candy (mishri) and tried to group them on the basis of properties given in table below. Help them in filling the table.
| Name of the material |
Appearance (Hard/Soft) |
Transparency (Transparent/ Translucent/ Opaque) |
Floats/ Sinks in water |
Soluble/ Insoluble in water |
Chalk, iron nail, wood, aluminium, candle, cotton usually look different from each other. Give some properties by which we can prove that these materials are different.
