____is a process In which ore is treated with suitable reagent which react with ore but not with the impurities.

The compound which reacts fastest with Lucas reagent at room temperature is:

A compound A reacts with thionyl chloride to give compound B. B reacts with magnesium in ether medium to form a Grignard reagent which is treated with acetone and the product on hydrolysis givesIdentify A and B. Write down the chemical equations for the reactions involved.

The impurities present in the ore have high density and the ore has low density. Which method is used to seperate this ore.

Some metals and ores are given. Match them suitably.

Which of the following is Magnesite ore?

Which is the ore of aluminium?

Which of the following is the suitable reagent to distinguish between carboxylic acid and phenol

Assertion : Hydrometallurgy involves dissolving the ore in a suitable reagent followed by precipitation by a more electropositive metal. Reason : Copper is extracted by hydrometallurgy from low grade ore.

Write suitable method of concentration for the ores given below