E waste is a rich source of metals Which among the following metals can be obtained through re...........

Environment and Ecology Waste Management

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E-waste is a rich source of metals. Which among the following metals can be obtained through recycling of e-waste?

1. Gold

2. Thorium

3. Nickel

4. Arsenic

5. Platinum

Select the correct answer using the code given below.

1,3,4,and 5 only

1,2 and5 only

1,2 and 3 only

1,2,3,4 and 5

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Explanation:

E-waste is a rich source of base and precious metals which can be exploited to compensate the diminishing high grade ores and can also meet up the increasing demands of heavy metals in the industries. This e-waste is a particularly rich source of precious metals – with concentrations 40 to 50 times more abundant than naturally occurring deposits. There are over 320 tons of gold and greater than 7,500 tons of silver used each year to make new electronic products around the world.Precious metals like gold, platinum and silver and other metals like Copper, Zinc, Lead, Nickel, Alumiinium, Iron, Arsenic etc are obtained from recycling of e-waste. Thorium is a radioactive metal, which is not obtained from e-waste