Question Bank

Which metal is found in the chlorophyll of plants?

Which of the following metals occurs in nature in the free state?

Brass is an alloy of which two metals?

Which ore is concentrated by the magnetic separation method?

Froth flotation process is used for the concentration of:

What is the percentage of Carbon in Mild Steel?

When Copper is exposed to moist air for a long time, it acquires a green coating. This coating is:

Which of the following metals does not react with dilute HCl?

Which chemical is added to lower the melting point of Alumina during electrolysis?

Stainless steel contains iron, carbon, and which other main metals?

Which of the following is the most reactive metal?

The impurity present in the ore is called:

Calcinations is the process of heating the ore:

Roasting is generally performed on which type of ores?

Solder is an alloy of:

Bronze is an alloy of:

Which metal is extracted from its ore using the Bessemer process?

What is the role of a 'Flux' in metallurgy?

Which metal burns with a dazzling white flame?

Aqua Regia is a mixture of concentrated HCl and concentrated HNO3 in the ratio: