Hardest material so far found is__________________?

Related Mcqs:

Evaporator used for concentrating tomato juice is made of __________________?

A. Nickel B. Brass C. Stainless steel-glass lined D. Cast iron-rubber lined...

When iron is rusted, it is__________________?

A. Converted to a fine powder B. Reduced C. Oxidised D. None of these...

Which of the following metals in not used for coating of the base metal to guard it against corrosion ?

A. Lead B. Cadmium C. Magnesium D. Aluminium...

A chemical change takes place when iron_____________?

A. Rusts B. Melts C. Is heated D. None of these...

Zircaloy used as a fuel cladding material in a nuclear reactor (thermal) is an alloy of zirconium_______________?

A. Tin, nickel, iron and chromium B. And graphite C. And copper D. None of these...