Chromium and Manganese Are Among the Transition Elements That Form

question 39

Multiple Choice

Chromium and manganese are among the transition elements that form several different oxides.Which of the following statements characterize these oxides?

• A)As the oxidation number on the metal increases,the valence-state electronegativity increases and the oxides change from acidic to basic.
• B)As the oxidation number on the metal increases,the valence-state electronegativity increases and the oxides change from basic to acidic.
• C)As the oxidation number on the metal increases,the valence-state electronegativity decreases and the oxides change from acidic to basic.
• D)As the oxidation number on the metal increases,the valence-state electronegativity decreases and the oxides change from basic to acidic.
• E)None of these statements is correct.

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