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Minerals, Ores and their Formation

Choose the co...

Question

Choose the correct answer from the alternatives given in the brackets.
Any metal mixed with mercury is called amalgam.
The amalgam used for dental filling is ______ .
( $A g - S n$ amalgam, $C u - S n$ amalgam, $A g - A u$ amalgam)

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Solution

The main component of dental filling is silver tin alloy. Silver and tin are the main constituent and copper is also present along with some other trace metals. It is used to fill cavities caused by tooth decay.

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Q. Any metal mixed with mercury is called amalgam. The amalgam used for dental filling is ______ .

Q. Any metal mixed with mercury is called an amalgam. The amalgam used for dental filling is__________.

Q. Assertion :An amalgam is a substance formed by the reaction of mercury with another metal. Reason: Almost all metals can form amalgams with mercury. Silver-mercury amalgams are important in dentistry, and gold-mercury amalgam is used in the extraction of gold from ore.

Q. Assertion :Amalgam is an alloy. Reason: An amalgam is a substance formed by the reaction of mercury with another metal.

Q. What is an amalgam? Name one metal which does not form amalgam? State one use of amalgam.

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