Question

Four students, (A), (B), (C) and (D) observed the colour and solubility of iron, sulphur and iron sulphide in carbon disulphide. The tick mark (â) represents 'soluble', and cross mark (â) represents 'insoluble', in carbon disulphide. Their observations are tabulated below. Student
Colour
Colour
Colour
Solubility in carbon disulphide
Solubility in carbon disulphide
Solubility in carbon disulphide
Student
Fe
S
FeS
Fe
S
FeS
(A)
Yellow
Silvery
Greyish silver
(â)
(â)
(â)
(A)
Silvery
Orange
Reddish brown
(â)
(â)
(â)
(B)
Silvery
Orange
Reddish brown
(â)
(â)
(â)
(C)
Grey
Yellow
Greyish black
(â)
(â)
(â)
(D)
Silvery
White
Silvery white
(â)
(â)
(â)
The student, who correctly reported the observations, is student (1) (A)
(2) (B)
(3) (C)
â(4) (D)

Answer 1

Explanation:

option B is answer of the question