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Standard XII

Chemistry

Formation of Complexes

Write the for...

Question

Write the formula of each of the following set of compounds:
Copper [I] oxide and Copper [II] oxide :

C u_{2} O

and

C u O

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C u O

and

C u_{2}

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C u (O)_{2}

and

C u O

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None of the above

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Solution

The correct option is D $C u_{2} O$ and $C u O$
Copper [I] oxide
$C u^{+} O^{- 2} = C u_{2} O$
Copper [II] oxide
$C u^{+ +} O^{- 2} = C u O$

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Similar questions

Q. A mixture of

C u O

and

{C u}_{2} O

contains

88 %

C u

. The percentage of

C u O

in the mixture is (as nearest integer) :

When hydrogen gas (H₂) is passed over copper oxide (CuO), copper (Cu) is produced along with water (H₂O). The balanced chemical equation for the given reaction is

Which substance is oxidized in the given reaction?

Pure Nitrogen can be obtained by passing ammonia vapours over heated copper (II) oxide $(C u O)$ .

Q. Which of the following statements about the given reaction are correct?

C u O_{(} s) + 2 H C l (d i l .) \to C u C l_{2 (a q)} + H_{2} O_{(l)}

(i)

C u C l_{2}

is blue-green coloured solution.
(ii) CuO is an acidic oxide.
(iii) This is a neutralisation reaction.
(iv) CuO is a basic oxide.

$C u O + H_{2} \to C u + H_{2} O$

Consider the above reaction, the element that is oxidizes is A and the element that is reduced is B. The elements B and A respectively are ____________ and _____________.

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Write the formula of each of the following set of compounds:Copper [I] oxide and Copper [II] oxide :

The correct option is D Cu2O and CuOCopper [I] oxideCu+O−2=Cu2OCopper [II] oxideCu++O−2=CuO

Write the formula of each of the following set of compounds:
Copper [I] oxide and Copper [II] oxide :

The correct option is D $C u_{2} O$ and $C u O$
Copper [I] oxide
$C u^{+} O^{- 2} = C u_{2} O$
Copper [II] oxide
$C u^{+ +} O^{- 2} = C u O$