Question Bank

What is the reason Aluminum does not corrode easily despite being a reactive metal?

Which of the following metals will not displace hydrogen from dilute acids?

Calcination is a process used for which type of ores?

What is the role of Cryolite (Na3AlF6) in the extraction of Aluminum?

Which metal is extracted using the self-reduction process?

The impurity present in the ore is technically called:

What is formed when Flux reacts with Gangue?

Which of the following is a 'Froth Floatation' process used for?

What is the percentage of Carbon in Cast Iron?

The process of heating the ore in excess of air below its melting point is:

Which metal reacts with cold water vigorously?

What is the composition of Duralumin?

Which reducing agent is used in the Blast Furnace for the extraction of Iron?

Anodizing is a process used primarily for which metal?

Which metal is used in the 'Thermite Process' for welding railway tracks?

Magnalium is an alloy consisting of:

German Silver contains which of the following metals?

What is the main chemical change during the rusting of iron?

Which metal does not react even with steam?

Which of these is the purest form of Iron?