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Electrolytic Refining

Ammonia is he...

Question

Ammonia is heated with black metallic oxide X to give reddish brown metal Y. What is X and Y?

A

PbO and Cu

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B

CuO and Pb

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C

PbO and Pb

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D

CuO and Cu

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Solution

The correct option is D
CuO and Cu

When ammonia is passed over heated copper oxide, the black copper oxide is reduced to reddish brown copper.

$2 N H_{3} + 3 C u O B l a c k s o l i d \to 3 C u R e d d i s h b r o w n s o l i d + 3 H_{2} O + N_{2} ↑$

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Similar questions

Ammonia is heated with black metallic oxide X to give reddish brown metal Y. What is X and Y?

Balance the following equations

a)Pb(NO₃)₂ gives PbO +NO₂+O₂

b)NH₃+CuO gives Cu+N₂+H₂O

c)NaOH+H₂SO₄ gives Na₂SO₄ +H₂O

d)Al₄C₃+H₂O gives CH₄+Al(OH)₃

_{3}

_{4}

is regarded as a mixed oxide of PbO and PbO

_{2}

. How many parts of PbO

_{2}

are present in it?

P b O

P b O + C \to P b + C O

Q. Upon heating with

C u_{2} S

, the reagents that give copper metal is/are

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