HARDMCQ SINGLENEET ChemistryInorganic ChemistryMetallurgyAchiever Section
Which of the following statements is correct about [Y]?
A.[Y] is converted to metal (M) by self reduction
B.Carbonate extract of [Y] gives yellow precipitate
C.[Y] is chalcocites or chalcopyrites
D.All of these✓ Correct
Explanation
It is sulphide ore (Cu2S or CuFeS2) & is called as chalcopyrites or chalcocites; S2– gives yellow precipitate of CdS with CdCO3. Assertion-Reason Type Questions While answering these questions, you are required to choose any one of the following four responses. (a) If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion. (b) If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion. (c) If the Assertion is correct but Reason is incorrect. (d) If the Reason is correct but Assertion is incorrect.
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