Three naturally occurring elements X,Y and Z are good conductors of electricity and are very precious. Z is more reactive than X and Yand on exposure to air for a long time turns black. Z forms analloy withY and is used in jewellery and Xis used as a catalyst. Identify X , Y and Z.

Three naturally occurring elements X,Y and Z are good conductors of el

1.	Three naturally occurring elements X,Y and Z are good conductors of electricity and are very precious. Z is more reactive than X and Yand on exposure to air for a long time turns black. Z forms analloy withY and is used in jewellery and Xis used as a catalyst. Identify X , Y and Z.
Answer» Solution :THREE precious elements that OCCUR nature are silver, GOLD and platinum. Silver is more reactive than gold and platinum is used as a CATALYST. Alloy of gold with silver is used in jewellery. So X is platinum, Y is gold and Z si silver.