Chemistry Question Bank

Which one of the following methods can be used to obtain highly pure metal which is liquid at room temperature? (NEET 2021)

Which of the following has maximum iron content? (AIIMS 2019)

Identify the incorrect statement. (Odisha NEET 2019)

Identify the incorrect statement. (NEET Odisha 2015)

Which of the following pairs of metals is purified by van Arkel method? (AIPMT 2011)

Which of the following elements is present as the impurity to the maximum extent in the pig iron? (AIPMT 2011)

Among the metals Cr, Fe, Mn, Ti, Ba and Mg, the one that cannot be obtained by reduction of metal oxide by aluminium is (RPMT 2007)

The magnetite ore is (AIPMT 2007)

The ore having two different metal atoms is (AIPMT 2006)

The process of converting hydrated alumina into anhydrous alumina is called (AIPMT 2013)

Aluminium is not present in which of the following mineral?

Of the following metals, the one which cannot be obtained by the electrolysis of the aqueous solution of its salt is

Certain metals can be obtained in the ultrapure state by heating with iodine and then decomposing the metal iodide at a much higher temperature. This method is known as

The distillation process (under reduced pressure) is used for the purification of

In electrorefining of metals, the anode is made of

The zone-refining process for purification of metals is based on

Heating pyrites to remove sulphur is called

Which of the following metals cannot be extracted by the carbon reduction process?

Heating with carbon in absence of air is known as :

Which of the following metals is obtained by electrolytic reduction process:

The metal which is extracted by electrolytic reduction is

Roasting or ores is done

Calcination of ores involves heating the ore below its fusion temperature

Flux is used to remove:

Which one of the following ores is best concentrated by froth floatation method?