AP EAPCET 2021 - 20th August Morning Shift | d and f Block Elements Question 9 | Chemistry | AP EAPCET - ExamSIDE.Com

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d and f Block Elements

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1

AP EAPCET 2021 - 20th August Morning Shift

MCQ (Single Correct Answer)

+1

-0

Which among the following is coloured?

A

CuCl

B

ScCl$$_3$$

C

CuCl$$_2$$

D

TiCl$$_4$$

2

AP EAPCET 2021 - 19th August Evening Shift

MCQ (Single Correct Answer)

+1

-0

The electronic configuration of $$\mathrm{Fe}^{3+}$$ is (atomic number of $$\mathrm{Fe}=26$$ )

A

$$[\mathrm{Ar}] 3 d^5 4 s^1$$

B

$$[\mathrm{Ar}] 3 d^6 4 s^0$$

C

$$[\mathrm{Ar}] 3 d^5 4 s^0$$

D

$$[\mathrm{Ar}] 3 d^6 4 s^2$$

3

AP EAPCET 2021 - 19th August Evening Shift

MCQ (Single Correct Answer)

+1

-0

The magnetic moment of Fe$$^{2+}$$ is ........ BM.

A

3.87

B

0

C

4.9

D

1.73

4

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.

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