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Heating mixture of Cu(2)O and Cu(2)S wil...

Heating mixture of `Cu_(2)O` and `Cu_(2)S` will give

A

`Cu_(2)SO_(3)`

B

`CuO+CuS`

C

`Cu+SO_(3)`

D

`Cu+SO_(2)`

Text Solution

Verified by Experts

The correct Answer is:
D
`(d) 2Cu_(2)O+Cu_(2)Srarr6Cu+SO_(2)` self reduction
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Knowledge Check

  • On hanting a mixture of Cu_(2)O and Cu_(2)S , we get :

    A
    `CuCO_(2)`
    B
    `Cu+SO_(3)`
    C
    `CuO+CuS`
    D
    `Cu_(2)SO_(3)`

  • Copper metal can be prepared by roasting copper ore, which contain cuprite (Cu_(2)S) and copper sulfide. (CuS) Cu_(2)S (s) + O_(2) (g) rarr 2Cu (s) + SO_(2) (g) CuS (s) + O_(2) (g) rarr Cu (s) + SO_(2) (g) If ore contains 14.6% impurity in addition to a mixture of CuS and Cu_(2)S . Heating 100 gm of mixture produces 70 gm of Cu metal with 90% purity. [Cu = 63] Percentage (By mass ) of CuS in the sample is :

    A
    0.095
    B
    0.38
    C
    0.19
    D
    0.57

  • Copper metal can be prepared by roasting copper ore, which contain cuprite (Cu_(2)S) and copper sulfide. (CuS) Cu_(2)S (s) + O_(2) (g) rarr 2Cu (s) + SO_(2) (g) CuS (s) + O_(2) (g) rarr Cu (s) + SO_(2) (g) If ore contains 14.6% impurity in addition to a mixture of CuS and Cu_(2)S . Heating 100 gm of mixture produces 70 gm of Cu metal with 90% purity. [Cu = 63] Percentage (By mass) of sulphur in the sample is :

    A
    0.448
    B
    0.2
    C
    0.224
    D
    0.4

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    A mixture of Cu_2O and Cu_2S is heated. Write a balanced chemical equation.

    The 'roasting' of 100.0 g of a copper ore yielded 71.8 g pure copper. If the ore is composed of Cu_(2)S and CuS with 4.5% inert impurity, calculate the percent of Cu_(2)S in the ore. The reactions are: Cu_(2)S+O_(2)rarr2Cu+SO_(2) and CuS+O_(2)rarrCu+SO_(2) [Atomic masses Cu=63.5m S=32] [Give answer exculuding decimal places]

    When a equimolar mixture of Cu_(2) S and CuS is tirated with Ba(MnO_(4))_(2) in acidic medium, the final products cintain Cu^(2+) , So_(2) and Mn^(2+) . If the mol. Mass of Cu_(2) S, and Ba(MnO_(4))_(2) are M_(1) , M_(2) and M_(3) respectively then :

    When a mixture of Cu_(2)S and CuS is titrated with Al(MnO_(4))_(3) in acidic medium, the oxidation product of Cu_(2)S and CuS and Cu^(+2) and SO_(2) . If the molecular weight of Cu_(2)S, CuS and Al(MnO_(4))_(3) be M_(1),M_(2) and M_(3) respectively, then which of the following statement are correct ?

    Colour of Cu_(2)O is due to

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