The cyanide process of gold extraction involves leaching out gold from its ore with CN –…
Chemistry · JEE Advanced · NTA Exams — General Principles and Processes of Isolation of Elements
The cyanide process of gold extraction involves leaching out gold from its ore with CN– in the presence of Q in water to form R. Subsequently, R is treated with T to obtain Au and Z. Choose the correct option(s).
- R is [Au(CN)4]–
- T is Zn
- Q is O2
- Z is [Zn(CN)4]2–
Answer
(D) Z is [Zn(CN) 4 ] 2–
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- Assertion : Al 2 O 3 is converted into Al by reduction with carbon at high temp. Reason : Carbon has greater…
- Assertion : In the extraction of Ag, complex Na [Ag (CN) 2 ] is reacted with Zn. Reason : Zn is d-block…
- Which of the following are true for electrolytic extraction of aluminium?
- Which of the following process is used in the extractive metallurgy of magnesium?
- The chemical treatment of the ore for concentration is done in the case of:
- Electrolytic reduction of alumina to aluminium by Hall-Heroult process is carried out
- The carbon-based reduction method is not used for the extraction of
- Assertion : Reduction of ZnO with carbon is done at 1100 o C Reason : G ^ is negative at this temperature…
More General Principles and Processes of Isolation of Elements questions · Browse all practice questions