Chemistry

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:

Amalgam is an alloy in which one of the metals is:

Which metal is used in the powder form in 'Thermite' welding?

Which of the following metals can be cut with a knife?

Cinnabar is an ore of:

Which gas is evolved when a metal reacts with a base?

Anodizing is the process of forming a thick oxide layer of:

What is 'Pig Iron'?

Duralumin is widely used in the aircraft industry because:

German Silver contains:

Which of the following is an amphoteric oxide?

Identify the ore of copper from the following: