Home
Earn $100 Online Daily. Work From Home. Click Here

What is the correct answer?

4

Chalcopyrite is the main ore of

A. Copper

B. Lead

C. Tin

D. Iron

Related Questions

Brackish water which contains mostly dissolved salt, can be purified by… In the Solvay process, the product from the calciner is Very dilute solutions are generally used in fermentation reactions for… Calgon used in water treatment is chemically Solvay process is not used for the manufacture of potassium carbonate,… The catalyst used in the manufacture of DDT (from chloral and chlorobenzene)… Cumene is the starting material for the production of Chemical name of 'alum' is Most commonly used rubber vulcanising agent is Which of the following is not a raw material used for the manufacture… Hydrogenation of oil/fat does not Gun powder uses The end bleaching agent used to move last traces of colour bodies from… The main product of high temperature carbonisation of coal is Oxygen is produced by fractionation of air using __________ process. Acetone is produced by catalytic dehydrogenation of Absorption of SO3 in 97% H2SO4 is Dry ice (solidified CO2) is used for the Thermoplastic materials Bleaching action of bleaching powder is due to its __________ properties. Function of sodium thiosulphate (hypo) in development of photographic… Fourdrinier machine is used in the manufacture of Very fine suspended and colloidal impurities are removed from water by… Insulin is an __________ drug. Which form of sulphur is the most stable at room temperature? The purpose of adding Na2CO3 to water of low alkalinity is to Multistage catalytic converter is not used in the Paper pulp produced by Kraft/sulphate process is The drug used in contraceptives is Parathion and Malathion are