Advertisements
Advertisements
Question
The colours of aqueous solutions of CuSO4 and FeSO4 as observed in the laboratory are:
(A) pale green and light blue respectively
(B) light blue and dark green respectively
(C) dark blue and dark green respectively
(D) dark blue and pale green respectively
Advertisements
Solution
Cu is present in +2 oxidation state and iron is present in +3 oxidation state.
The Correct Answer is D
RELATED QUESTIONS
Explain the following in term Oxidation of gain or loss of oxygen with two example.
Give one example of an oxidation-reduction reaction which is also a displacement reaction.
When copper powder is heated strongly in air, it forms copper oxide. Write a balanced chemical equation for this reaction. Name (i) substance oxidised, and (ii) substance reduced.
Name the following:
The process in which oxygen is added or hydrogen is removed.
In what respect does hydrogen differ from:
alkali metals
Compare hydrogen and halogens on the basis of:
reaction with oxygen
Name:
a gas that is oxidizing as well as a reducing agent.
Identify the oxidising agent (oxidant) in the following reactions
`3"Fe" + 4"H"_2"O" -> "Fe"_3"O"_4 + 4"H"_2`
During the reaction of some metals with dilute hydrochloric acid, following observations are made.
The temperature of the reaction mixture rises when aluminium (Al) is added.
Explain this observation giving suitable reason.
The tarnishing of metals is due to the formation of ______.
