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Physical Properties of Metals

name a non me...

Question

name a non metal which is yellow coloured solid , insoluble in water but soluble in carbon disulphide

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Solution

The non-metal is Sulfur.
Sulfur is a yellow coloured solid. It is insoluble in water but soluble in carbon disulphide.

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Q. Four students, (A), (B), (C) and (D) observed the colour and solubility of iron, sulphur and iron sulphide in carbon disulphide. The tick mark (✔) represents 'soluble', and cross mark (✕) represents 'insoluble', in carbon disulphide. Their observations are tabulated below.

Student	Colour			Solubility in carbon disulphide
Student	Fe	S	FeS	Fe	S	FeS
(A)	Yellow	Silvery	Greyish silver	(✔)	(✕)	(✔)
(A)	Silvery	Orange	Reddish brown	(✕)	(✔)	(✔)
(B)	Silvery	Orange	Reddish brown	(✕)	(✔)	(✔)
(C)	Grey	Yellow	Greyish black	(✕)	(✔)	(✕)
(D)	Silvery	White	Silvery white	(✔)	(✕)	(✕)

The student, who correctly reported the observations, is student :
(1) (A)
(2) (B)
(3) (C)
(4) (D)

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