Match Column I (Catalyst) with Column II (Process), and mark the appropriate option:
 

Column I - (Catalyst)		Column II - (Process)
A.	Ni in the presence of hydrogen	1.	Contact process
B.	Cu2Cl2	2.	Vegetable oil to ghee
C.	V2O5	3.	Sandmeyer reaction
D.	Finely divided iron	4.	Haber's process
		5.	Decomposition of  KClO3

 

Codes

	A	B	C	D
1.	3	4	2	5
2.	2	3	1	4
3.	5	4	3	2
4.	4	5	3	2

Match the properties given in Column I with uses given in Column II 

Match the solutions given in Column I with the colours given in Column II.

Codes

Which of the following has the highest spin-only magnetic moment value?

1. ${\mathrm{Ti}}^{3+}$

2. ${\mathrm{Mn}}^{2+}$

3. ${\mathrm{Fe}}^{2+}$

4. ${\mathrm{Co}}^{3+}$

An actinoid that does not have one electron in its 6d orbital is -

The actinoid that can show oxidation states up to +7 is:

1. Am

2. Th

3. U

4. Np

The electronic configuration of gadolinium (atomic number of 64) is:

1. $\left[\mathrm{Xe}\right]4{\mathrm{f}}^{3}5{\mathrm{d}}^{5}6{\mathrm{s}}^2$

2. $\left[\mathrm{Xe}\right]4{\mathrm{f}}^{7}5{\mathrm{d}}^{2}6{\mathrm{s}}^1$

3. $\left[\mathrm{Xe}\right]4{\mathrm{f}}^{7}5{\mathrm{d}}^{1}6{\mathrm{s}}^2$

4. $\left[\mathrm{Xe}\right]4{\mathrm{f}}^{8}5{\mathrm{d}}^{6}6{\mathrm{s}}^2$

The metallic radii of some transition elements are given below. An element that has the highest density is:

1. Fe 

2. Ni

3. Co

4. Cu

Which of the following statements is true? 

Lanthanoid's most common oxidation state is:
1. 2
2. 5 
3. 3 
4. 4