Metal And Its Compounds - Study Mode
[#86] What is stainless steel?
Correct Answer
(D) Alloy
[#87] Which of the following metals cannot be extracted by the carbon reduction process?
Correct Answer
(D) Al
[#88] The process of forming a thick oxide layer of aluminium oxide on the surface of aluminium so as to protect it from corrosion is called:
Correct Answer
(B) Anodising
[#89] Which one of the following is the correct sequence of the given substances in the decreasing order of their densities?
Correct Answer
(B) Gold > Mercury > Steel
[#90] What will be the gas produced in the reaction of sodium carbonate with hydrochloric acid?
Correct Answer
(D) Carbon dioxide