Science Questions

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:

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: