Given below are two statements:
Statement I: In Lassaigne's test, the covalent organic molecules are transformed into ionic compounds.
Statement II: The sodium fusion extract of an organic compound having N and S gives prussian blue colour with $\mathrm{FeSO}_4$ and $\mathrm{Na}_4\left[\mathrm{Fe}(\mathrm{CN})_6\right]$
In the light of the above statements, choose the correct answer from the options given below
Which of the following compound can give positive iodoform test when treated with aqueous $$\mathrm{KOH}$$ solution followed by potassium hypoiodite.
Match List I with List II
LIST I (Test) |
LIST II (Observation) |
||
---|---|---|---|
A. | $$\mathrm{Br_2}$$ water test | I. | Yellow orange or orange red precipitate formed |
B. | Ceric ammonium nitrate test | II. | Reddish orange colour disappears |
C. | Ferric chloride test | III. | Red colour appears |
D. | 2, 4 - DNP test | IV. | Blue, Green, Violet or Red colour appear |
Choose the correct answer from the options given below:
Identify the incorrect statements regarding primary standard of titrimetric analysis.
(A) It should be purely available in dry form.
(B) It should not undergo chemical change in air.
(C) It should be hygroscopic and should react with another chemical instantaneously and stoichiometrically.
(D) It should be readily soluble in water.
(E) $$\mathrm{KMnO}_4$$ & $$\mathrm{NaOH}$$ can be used as primary standard.
Choose the correct answer from the options given below :