Which among the following is also known as white metal?
Detailed Explanation:
Platinum is a lustrous, dense, silver-white precious metal with high corrosion resistance and catalytic properties. It is commonly referred to as white metal due to its natural silvery-white appearance.
Gold is yellow, copper is reddish-brown, and cobalt is greyish-blue—none match the white metal descriptor. While industrial alloys of tin/lead are sometimes called "white metal," in UPSC/general knowledge context, platinum is the standard answer.
Therefore, platinum's silvery-white color makes Option 2 the correct answer.
Question 3 of 4 Metallurgy
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