Explain the extraction of zinc from its important ore. - Toppr
The chief Ore of zinc is zinc blende. The extraction of zinc from zinc blende involves the following steps. Concentration: The ore is crushed and then concentrated by froth-floatation Process. Roasting: The concentrated ore is then roasted in the presence of excess of air at about 1200 k: 2 Z n S + 3 O 2 Δ → 2 Z n O + 2 S O 2
4 Zinc is obtained from the ore, zinc blende, Zns. (a) Describe the ...
4 Zinc is obtained from the ore, zinc blende, Zns. (a) Describe the extraction of zinc from its ore, zinc blende. Include at least one balanced equation in your description. (b) State two major uses of zinc. 12]
In zinc blende structure:zinc ions occupy half of the ... - Toppr
In this sulphide ions are present at corners and zinc ions occupy half of the tetrahedral voids. Each Z n + 2 ion is surrounded by 4 S − 2 ion and each S − 2 ion is surrounded by 4 Z n + 2 Hence, Options "A" & "D" are correct answers.
In zinc blende structure, the coordination number of - Toppr
Correct option is B. $$4$$ Zinc blende $$(ZnS)$$ has fcc structure and is an ionic crystal having $$4 : 4$$ co-ordination number.
The coordination number of Zn^{2+} and S^{2-} ions in the zinc …
In zinc blende (ZnS) structure, the co-ordination number of S 2– ion is (S 2– ion occupy the lattice points of FCC unit cell) जिंक ब्लेण्ड (ZnS) की संरचना में, S 2– आयन की समन्वय संख्या है (S 2– आयन FCC एकक कोष्ठिका के ...
Zinc Blende is concentrated by:chemical separationmagnetic
An ore sample of galena (P b S) is contaminated with zinc blende (Z n S). Name one chemical which can be used to concentrate galena selectively by froth floatation method. Name one chemical which can be used to concentrate galena selectively by froth floatation method.
Write chemical reactions taking place in the extraction of zinc
(iii) Electrorefining is carried out for refining of impure zinc. Anode is impure zinc and cathode is pure zinc. Electrolyte is a mixture of zinc sulphate and dilute sulphuric acid (small amount). When current is passed, zinc is deposited on cathode and is collected. At anode : Z n → Z n 2 + + 2 e − At cathode: Z n 2 + + 2 e − → Z n
I T U . .U ILS. 4. Zinc blende (ZnS] is roasted in air. Calculate - Toppr
Zinc blende (ZnS] is roasted in air. Calculate : al the number of moles of sulphur dioxide liberated by 776 g of ZnS and [Ans. 8 moles b] The weight of ZnS required to produce 22.4 lits of SO2 at s.t.p. [S=32, Zn=65, O=16] [Ans. 97 g.1 l i dt L.C_ 1
In zinc blende structure:zinc ions occupy half of the ... - Toppr
In zinc sulphide, ZnS, the radius ratio is 0.40. Each zinc ion is tetrahedrally surrounded by four S − 2 ions and each S − 2 ion is surrounded by four Z n + 2 ions. Which void would be occupied by Z n + 2 ions?
In the zinc blende structure (ZnS),{S}^{2-} adopt CCP ... - Toppr
In zinc blende (ZnS) structure, the co-ordination number of S 2– ion is (S 2– ion occupy the lattice points of FCC unit cell) जिंक ब्लेण्ड (ZnS) की संरचना में, S 2– आयन की समन्वय संख्या है (S 2– आयन FCC एकक कोष्ठिका के जालक बिन्दु ग्रहण ...