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1
AP EAPCET 2021 - 19th August Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following statement is not correct?

A
$$\mathrm{Fe}^{3+} / \mathrm{Fe}^{2+}$$ redox couple has less positive electron potential than $$\mathrm{Mn}^{3+} / \mathrm{Mn}^{2+}$$ couple.
B
$$\mathrm{MnO}_4^{2-}$$ is a strong oxidising agent but $$\mathrm{CrO}_4^{2-}$$ is not.
C
The second and third series of transition elements have almost similar atomic radii.
D
The E$$\Upsilon$$ value for $$\mathrm{Mn}^{3+} / \mathrm{Mn}^{2+}$$ couple is much more positive than for $$\mathrm{Cr}^{3+} / \mathrm{Cr}^{2+}$$ couple.
2
AP EAPCET 2021 - 19th August Morning Shift
MCQ (Single Correct Answer)
+1
-0

To which group of the periodic table does an element having electronic configuration [Ar] 3d$$^5$$ 4s$$^2$$ belong?

A
Second
B
Fourth
C
Seventh
D
Third
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