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प्रश्न
What is an amalgam?
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उत्तर
Amalgam is an alloy of mercury with one or more metals. Sodium along with liquid mercury is known as sodium amalgam. Amalgam of mercury with tin, silver and zinc is widely used in dental filling.
संबंधित प्रश्न
State one use of the following metal:
Aluminium
For the reduction of a metal oxide, suggest a reducing agent other than carbon.
Tick (√) the most appropriate answer.
Graphite is used :
State two important uses of following metal:
Uses of gold
Take an element from an alkali metal and one from an alkaline earth metal and write an equation for their action with:
Hydrochloric acid,
When a copper coin is dipped in silver nitrate solution, a glitter appears on the coin after some time. Why does this happen? Write the chemical equation.
The most abundant metal in the earth’s crust is ____________.
Metals and non–metals are used for making ______, ______ and ______.
Metals have high melting points.
Which metals are liquid at room temperature?
