Identify the inorganic sulphides that are yellow in colour: (A) (NH4)2S (B) PbS (C) CuS (D) As2S3 (E) As2S5 (a) (A) and…
Ionic Equilibrium · Class 11 · JEE Main Previous Year Question
Identify the inorganic sulphides that are yellow in colour:
(A) \quad (B) \quad (C) \quad (D) \quad (E)
(a) (A) and (C) only (b) (A), (D) and (E) only (c) (A) and (B) only (d) (D) and (E) only
- a
(A) and (C) only
- b✓
(A), (D) and (E) only
- c
(A) and (B) only
- d
(D) and (E) only
(A), (D) and (E) only
Colours of inorganic sulphides:
| Sulphide | Colour | |---|---| | | Colourless to pale yellow | | | Black | | | Black | | | Yellow | | | Yellow |
Yellow sulphides: (A) , (D) , (E)
Answer: (b) (A), (D) and (E) only
Practice this question with progress tracking
Want timed practice with adaptive difficulty? Solve this question (and hundreds more from Ionic Equilibrium) inside The Crucible, our adaptive practice platform.
More JEE Main Ionic Equilibrium PYQs
10 mL of 2 M NaOH solution is added to 20 mL of 1 M HCl solution kept in a beaker. Now, 10 mL of this mixture is poured into a volumetric flask of 100 mL containing 2 moles of HCl and made the volume…
If equal volumes of AB2 and XY (both are salts) aqueous solutions are mixed, which of the following combination will give a precipitate of AY2 at 300 K? (Given Ksp for AY2 = 5.2 10-7)
A weak acid HA has degree of dissociation x. Which option gives the correct expression of pH - pKa?
An aqueous solution of HCl with pH 1.0 is diluted by adding equal volume of water (ignoring dissociation of water). The pH of HCl solution would (Given 2 = 0.30):
Arrange the following in increasing order of solubility product: {Ca(OH)}_2,\;{AgBr},\;{PbS},\;{HgS}