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प्रश्न
Which liquid metal is used for making thermometers?
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उत्तर
Mercury metal is used for making thermometers.
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संबंधित प्रश्न
Write the properties of this substance.
Coal
Write the properties of this substance.
Ink
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Short Answer Type Question:
Metals generally occur in solid state and are hard. Name a metal that exists in liquid state and a metal that is soft and can be cut with knife.
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Given below are the names of some objects and materials:
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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 |
