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Chemistry

Chemistry
Which metal is extracted from sea water?

Beryllium
Potassium
Aluminium
Magnesium

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Chemistry
Silver nitrate solution is kept in brown bottles in laboratory because

It reacts with ordinary white bottles
Brown bottles react with it
Brown bottles do not react with it
Brown bottles stops the passage of light through it

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Chemistry
Which amidst the following is not a gem stone ?

Pearl
Cat's-eye
Topaz
Opal

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Chemistry
German silver, an alloy, does not contain the metal

Silver
Copper
Zinc
Nickel

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Chemistry
The method of concentrating the ore which makes use of the difference in density between ore and impurities is called

liquation
levigation
magnetic separation
leaching

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Chemistry
Which one is a soluble salt in H2O

CuS
PbCl2
Zn(OH)2
CaCl2

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MORE MCQ ON Chemistry

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