The d- and f- Block Elements Test

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Catalyst	Process
A. $$TiCl_3$$	i. Wacker process
B. $$PdCl_2$$	ii. Ziegler - Natta polymerization
C. $$CuCl_2$$	iii. Contact process
D. $$V_2O_5$$	iv. Deacon's process

	Column I		Column II
a.	$$Co^{3+}$$	i.	$$\sqrt {8}B.M.$$
b.	$$Cr^{3+}$$	ii.	$$\sqrt {35}B.M.$$
c.	$$Fe^{3+}$$	iii.	$$\sqrt {3}B.M.$$
d.	$$Ni^{2+}$$	iv.	$$\sqrt {24}B.M.$$
		v.	$$\sqrt {15}B.M.$$

The d- and f- B...

Question 1

$$Cr=Fe>Co>Ti$$

$$Fe>Co>Cr>Ti$$

$$Cr>Fe>Co>Ti$$

$$Cr=Fe>Ti>Co$$

Question 2

the 5f orbitals are more buried than the 4f orbitals.

there is a similarity between 4f and 5f orbitals in their angular part of the wave function.

the actinoids are more reactive than the lanthanoids.

the 5f orbitals extend further from the nucleus than the 4f orbitals.

Question 3

(A) - (iii), (B) - (ii), (C) - (iv), (D) - (i)

(A) - (ii), (B) - (i), (C) - (iv), (D) - (iii)

(A) - (ii), (B) - (iii), (C) - (iv), (D) - (i)

(A) - (iii), (B) - (i), (C) - (ii), (D) - (iv)

Question 4

$${Co}^{3+}$$ and $${Cr}^{3+}$$

$${Co}^{3+}$$ and $${Co}^{3+}$$

$${Cr}^{3+}$$ and $${Cr}^{3+}$$

$${Cr}^{3+}$$ and $${Co}^{3+}$$

Question 5

$$[ZnCl_4]^{2-} > [NiCl_4]^{2-} > [CoCl_4]^{2-} > [MnCl_4]^{2-}$$

$$[CoCl_4]^{2-} > [MnCl_4]^{2-} > [NiCl_4]^{2-} > [ZnCl_4]^{2-}$$

$$[NiCl_4]^{2-} > [CoCl_4]^{2-} > [MnCl_4]^{2-} > [ZnCl_4]^{2-}$$

$$[MnCl_4]^{2-} > [CoCl_4]^{2-} > [NiCl_4]^{2-} > [ZnCl_4]^{2-}$$

Question 6

$$V^{2+} > Cr^{2+} > Ru^{3+} > Fe^{2+}$$

$$V^{2+} > Ru^{3+} > Cr^{2+} > Fe^{2+}$$

$$Cr^{2+} > V^{2+} > Ru^{3+} > Fe^{2+}$$

$$Cr^{2+} > Ru^{3+} > Fe^{2+} > V^{2+}$$

Question 7

more energy difference between 5f and 6d than between 4f and 5d orbitals

more reactive nature of the actinoids than the lanthanoids

4f orbitals more diffused than the 5f orbitals

lesser energy difference between 5f and 6d than between 4f and 5d orbitals

Question 8

$$a - iv, b - i, c - ii, d - iii$$

$$a - iv, b - v, c - ii, d - i$$

$$a - iii, b - v, c - i, d - ii$$

$$a - i, b - ii, c - iii, d - iv$$

Question 9

$$4.90 BM$$

$$5.92 BM$$

$$2.84 BM$$

$$3.87 BM$$

Question 10

$$MnO_{4}^{-}$$

$$CrO_{4}^{2-}$$

$$MnO_{4}^{2-}$$

$$Cr_{2}O_{7}^{2-}$$

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