In qualitative analysis is under:
Important Questions on Theoretical Principles of Experimental Chemistry
Given below are two statements:
Statement-I : Methyl orange is a weak acid.
Statement-II : The benzenoid form of methyl orange is more intense/deeply coloured than the quinonoid form.
In the light of the above statement, choose the most appropriate answer from the options given below:
State the differences between cation and anion.
Give examples of bivalent acidic radicals.
Give examples of composite radicals.
Define the term cation.
Give examples of basic radicals.
Identify the odd one out and justify.
Chloride, nitrate, hydride, ammonium.
(i) Cu+ undergoes disproportionation to Cu and Cu2+ in aqueous solution
(ii) Hg2Cl2 does not impart chromyl chloride test
(iii) Sulphide ions react with sodium nitroprusside to form a purple coloured complex. In this reaction, oxidation state of iron changes.
Give examples of trivalent basic radicals.
Define the term anion.
Give examples of metals with variable valency.
Give examples of positive radicals.
Match the following:-
| Column I | Column II | |
| (Elements) | (Symbol) | |
| (i) | Acidic Radicals | |
| (ii) | Basic Radicals | |
| (iii) | Monovalent Radicals | |
| (iv) | Variable Valency | |
| (v) | Tetravalent elements |
Explain how the element sodium is monovalent.
Cations are _____ charged.
(Chromatography, Valency, Cuprum, Negatively, , one, , Positively, Separating funnel)
