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What is the valency of Cu in CuO and Cu2...

What is the valency of Cu in CuO and `Cu_2O`?

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To determine the valency of copper (Cu) in the compounds CuO and Cu2O, we can follow these steps: ### Step 1: Understand the concept of valency Valency is the combining capacity of an element, which indicates how many electrons an atom can lose, gain, or share when it forms a chemical bond with other atoms. ### Step 2: Analyze the compound CuO 1. **Identify the elements in CuO**: The compound CuO consists of copper (Cu) and oxygen (O). 2. **Know the charge of oxygen**: Oxygen typically has a valency of -2 (it gains two electrons). ...
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Knowledge Check

  • Assertion : Equivalent weight of Cu in CuO is 63.6 and in Cu_(2)O 31.8 . Reason : Equivalent weight of an element =("Atomic weight of the element")/("Valency of the element")

    A
    If both assertion and reason are true and the reason is the correct explanation of the assertion.
    B
    If both assertion and reason are true but reason is not the correct explanation of the assertion.
    C
    If assertion is true but reason is false.
    D
    If assertion is false but reason is true.

  • At high temperature, the following reaction occurs 4CuO(s)hArr 2Cu_(2)O(s)+O_(2)(g) Consider the following statements regarding reaction 1. K_(p)=P_(O_(2)) 2. K_(p) depends upon the amounts of CuO and Cu_(2)O 3. K_(p) lt lt K_(c) 4. K_(p) gt K_(c) Of the statements

    A
    1 and 2 are correct
    B
    1, 2 and 3 are correct
    C
    1 and 4 are correct
    D
    2 and 3 are correct

  • What is the equivalent weight of reductant in the given redox reaction, Cu_(2)S+(5)/(2)O_(2)rarr2CuO+SO_(3)

    A
    `(M)/(5)`
    B
    `(M)/(8)`
    C
    `(M)/(10)`
    D
    `(M)/(4)`

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