Occurrence of Elements in Nature
Occurrence of Elements in Nature: Overview
This topic covers concepts, such as, Metallurgy, Occurrence of Elements, Minerals and Ores, Oxide Ores, Sulphide Ores, Halide Ores, Nitrate Ores, Carbonate Ores & Oxy-Salt Ores etc.
Important Questions on Occurrence of Elements in Nature
Casseterite is ore of
Match List-I with List-II.
| List-I (Ores) |
List-II (Composition) |
||
| (a) | Haematite | (i) | |
| (b) | Magnetite | (ii) | |
| (c) | Calamine | (iii) | |
| (d) | Kaolinite | (iv) | |
Choose the correct answer from the options given below:
Find the number of native ores out of the given ores:
pyrolusite, chromite, siderite, cassiterite, calamine, argentite, limestone, chalcopyrite.
Oxidation states of the metal in the minerals haematite and magnetite, respectively.
Which of the following an example of oxy-salt ores?
Which of the following an example of oxy-salt ores?
Calamine is an ore of:
Identify the ore malachite from the following.
Which of the following salts is least likely to be found in minerals?
Which of the following minerals contains titanium?
A number of elements are available in earth’s crust but most abundant elements are _____.
Which of the following is magnetite?
Which of the following is not a carbonate ore?
Which one of the following is not a sulphide ore?
The name of the metal which is extracted from the ore is given below. Mark the example which is not correct.
Which of the following is not an ore of magnesium?
Which of the following examples is not correctly matched?
Which of the following is not the correct name of the formula of the ore given with it?
In which of the following the name of the ore is not matched with its formula?
Bronze is an alloy of
