43.Which among the following metals is the hardest metal? [A] Platinum [B] Gold [C] Iron [D] Tungsten Show Answer
While there are several parameters for categorizing metals in terms of hardness, chromium (687-6500 MPa) is the hardest known metal on the planet. It should not be confused with Tungsten, which has the highest tensile strength of any metal. Tungsten in its pure form is typically brittle and can shatter on impact.
