Metal And Its Compounds - Study Mode
[#126] Which of the following is not a non-ferrous metallic mineral?
Correct Answer
(A) Mica
[#127] The symbol used for Magnesium is:
Correct Answer
(D) Mg
[#128] Rust needs three components to occur i.e. . . . . . . . .
Correct Answer
(B) iron, oxygen and moisture
[#129] Which is the second most abundant element found in the earth's crust?
Correct Answer
(B) silicon
[#130] Which of the following causes damage to bridges, iron rust and all items made of metals?
Correct Answer
(D) corrosion