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प्रश्न
Give an example of a metal which is a liquid at room temperature.
उत्तर
Mercury
APPEARS IN
संबंधित प्रश्न
Explain the meaning of malleable.
Give reasons for the following.
Aluminium foils are used to wrap food items.
Name two metals which are used for making electric wires.
Name the non-metal which is used to convert vegetable oil into vegetable ghee (solid fat).
Name the metal which is used in making thermometers.
How do non-metals react with oxygen? Explain with an example. Give equation of the reaction involved. What is the nature of the product formed? How will you demonstrate it?
Name a metal used as a thermometric liquid
Name a non-metal that a good conductor of heat and electricity
State two important uses of following non-metal
Uses of oxygen
Name:
a metal with low melting and boiling points
Name:
a metal which can float on water
Name:
a metal which is a bad conductor of heat and electricity
Name:
a non- metal used in alloys
`Mg +H_2SO_4 → —+ — `
Explain how the activity series accounts for the following:
occurrence of metals
Name the following:
An Alloy of copper and Zinc.
Match the following:
| Column A | Column B |
| (a) Helium | (1) Electric bulb |
| (b) Neon | (2) Thermometer |
| (c) Argon | (3) Semiconductor |
| (d) Germanium | (4) Weather balloons |
| (e) Mercury | (5) Advertising signboards |
Complete the statement given below, by filling in the blank with the correct word:
A non-metal added to swimming pools to kill germs_____.
