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Standard XII

Chemistry

Electrolytic Refining

Question 18Wh...

Question

Question 18
Which of the following metals are obtained by electrolysis of their chlorides in molten state?
(i) $Na$
(ii) $Ca$
(iii) $Fe$
(iv) $Cu$

(a) (i) and (iv)
(b) (iii) and (iv)
(c) (i) and (iii)
(d) (i) and (ii)

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Solution

Options (d) is correct.

Highly reactive metals such as $K, Na, Ca$ can be obtained by the electrolysis of their halides, usually chlorides, in molten state.

Whereas, metals like $Zn, Fe, Pb, Cu$ are reduced by reducing agents such as $C, CO$ and $H_{2}$ .

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Similar questions

Question 18
Which of the following metals are obtained by electrolysis of their chlorides in molten state?
(i) $Na$
(ii) $Ca$
(iii) $Fe$
(iv) $Cu$

(a) (i) and (iv)
(b) (iii) and (iv)
(c) (i) and (iii)
(d) (i) and (ii)

Q. Which of the following metals are obtained by electrolysis of their chlorides in molten state?
(i)

N a

(ii)

C a

(iii)

F e

(iv)

C u

Q. Which of the following metals are obtained by electrolysis of their chlorides in molten state?
(i) Na
(ii) Ca
(iii) Fe
(iv) Cu

Q. Which of the following species are hypervalent ?
(I)

C l O_{4}^{-}

(II)

B F_{3}

(III)

S O_{4}^{2 -}

(IV)

C O_{3}^{2 -}

Question 10
Which among the following have scales?

(i) Amphibians
(ii) Pisces
(iii) Reptiles
(iv) Mammals

(a) (i) and (iii)
(b) (iii) and (iv)
(c) (ii) and (iii)
(d) (i) and (ii)

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Electrolytic Refining

Standard XII Chemistry

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Question 18 Which of the following metals are obtained by electrolysis of their chlorides in molten state? (i) Na (ii) Ca (iii) Fe (iv) Cu (a) (i) and (iv) (b) (iii) and (iv) (c) (i) and (iii) (d) (i) and (ii)

Options (d) is correct. Highly reactive metals such as K, Na, Ca can be obtained by the electrolysis of their halides, usually chlorides, in molten state. Whereas, metals like Zn, Fe, Pb, Cu are reduced by reducing agents such as C, CO and H2.

Question 18
Which of the following metals are obtained by electrolysis of their chlorides in molten state?
(i) $Na$
(ii) $Ca$
(iii) $Fe$
(iv) $Cu$

(a) (i) and (iv)
(b) (iii) and (iv)
(c) (i) and (iii)
(d) (i) and (ii)

Options (d) is correct.

Highly reactive metals such as $K, Na, Ca$ can be obtained by the electrolysis of their halides, usually chlorides, in molten state.

Whereas, metals like $Zn, Fe, Pb, Cu$ are reduced by reducing agents such as $C, CO$ and $H_{2}$ .