Chemistry-
General
Easy
Question
The process of calcination is used for
- carbonate ores
- sulphide ores
- nitrate ores
- sulphate ores
The correct answer is: carbonate ores
Calcination is used only for carbonate ores.
Related Questions to study
Chemistry-
Rust is hydrated
Rust is hydrated
Chemistry-General
Chemistry-
Stainless steel is addition to iron contains
Stainless steel is addition to iron contains
Chemistry-General
Chemistry-
When a sample of copper containing iron as impurity is purified by electrolysis, the appropriate electrodes are: Cathode Anode
When a sample of copper containing iron as impurity is purified by electrolysis, the appropriate electrodes are: Cathode Anode
Chemistry-General
Chemistry-
Parts of aeroplanes are generally made from
Parts of aeroplanes are generally made from
Chemistry-General
Chemistry-
Which is expected to conductor of electricity?
Which is expected to conductor of electricity?
Chemistry-General
Chemistry-
Which gives carbon with conc. H2SO4?
Which gives carbon with conc. H2SO4?
Chemistry-General
Chemistry-
Cryolite is :
Cryolite is :
Chemistry-General
Chemistry-
All ores are minerals while all minerals are not ores because:
All ores are minerals while all minerals are not ores because:
Chemistry-General
Chemistry-
Metals are refined by using different methods. Which of the following metals are refined by electrolytic refining?
i)Ag
ii)Cu
iii)Na
iv)Al.
Metals are refined by using different methods. Which of the following metals are refined by electrolytic refining?
i)Ag
ii)Cu
iii)Na
iv)Al.
Chemistry-General
Chemistry-
Galvanization is a method of protecting iron from rusting by coating with a thin layer of
Galvanization is a method of protecting iron from rusting by coating with a thin layer of
Chemistry-General
Chemistry-
Corrosion or rusting can be prevented by
Corrosion or rusting can be prevented by
Chemistry-General
Chemistry-
An element reacts with oxygen to give a compound with a high melting point. This compound is also soluble in water. The element is likely to be:
An element reacts with oxygen to give a compound with a high melting point. This compound is also soluble in water. The element is likely to be:
Chemistry-General
Chemistry-
Which of the following metals is protected by a layer of its own oxide?
Which of the following metals is protected by a layer of its own oxide?
Chemistry-General
Chemistry-
The correct decreasing order of the metals in the activity series is:
The correct decreasing order of the metals in the activity series is:
Chemistry-General
Chemistry-
The order of reactivity with oxygen is in the order
The order of reactivity with oxygen is in the order
Chemistry-General
