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Which of the accompanying assertion isn’t right? (a) Copper frees hydrogen from acids (b) In its higher oxidation states, manganese structures stable mixtures with oxygen and fluorine (c) Mn3+ and Co3+ are oxidizing specialists in watery arrangement (d) Ti2+ and Cr2+ are decreasing specialists in watery arrangement
Which of the accompanying assertion isn’t right? (a) Copper frees hydrogen from acids (b) In its higher oxidation states, manganese structures stable mixtures with oxygen and fluorine (c) Mn3+ and Co3+ are oxidizing specialists in watery arrangement (d) Ti2+ and Cr2+ are decreasing specialists in watery arrangement
CBSE | Chemistry | Class 12 | Exercise 1 | NCERT Exemplar | The d & f Block Elements
Which of the accompanying assertion isn’t right? (a) Copper frees hydrogen from acids (b) In its higher oxidation states, manganese structures stable mixtures with oxygen and fluorine (c) Mn3+ and Co3+ are oxidizing specialists in watery arrangement (d) Ti2+ and Cr2+ are decreasing specialists in watery arrangement

Solution:

(a) Copper doesn’t free hydrogen from acids.

\[\begin{array}{*{35}{l}}

Cu\text{ }+\text{ }2H2S04\text{ }\text{ }>\text{ }CuSO4\text{ }+\text{ }S02\text{ }+\text{ }2H2O  \\

~  \\

3Cu\text{ }+\text{ }8HNO3\text{ }\text{ }>\text{ }3CU\left( N03 \right)2\text{ }+\text{ }2NO\text{ }+\text{ }4H2O  \\

\end{array}\]

i

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