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Q.

Identify the inorganic sulphides that are yellow in colour :
(A) (NH4)2S
(B) PbS
(C) CuS
(D) As2S3
(E) As2S5
Choose the correct answer from the options given below :

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An Intiative by Sri Chaitanya

a

(A) and (C) only

b

(A), (D) and (E) only

c

(A) and (B) only

d

(D) and (E) only

answer is B.

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Detailed Solution

As2S3 and As2S5 are yellow colored sulphides, (NH4)2S is colourless, PbS is black, CuS is black in colour.

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