Question

Among the following series of transition metal ions, the one in which all metal ions have $$3{d^2}$$  electronic configuration is
$$\left( {{\text{At}}{\text{. no}}{\text{.}}\,Ti = 22,V = 23,} \right.$$     $$\left. {Cr = 24,Mn = 25} \right)$$

A. $$T{i^{3 + }},{V^{2 + }},C{r^{3 + }},M{n^{4 + }}$$
B. $$T{i^ + },{V^{4 + }},C{r^{6 + }},M{n^{7 + }}$$
C. $$T{i^{4 + }},{V^{3 + }},C{r^{2 + }},M{n^{3 + }}$$
D. $$T{i^{2 + }},{V^{3 + }},C{r^{4 + }},M{n^{5 + }}$$  
Answer :   $$T{i^{2 + }},{V^{3 + }},C{r^{4 + }},M{n^{5 + }}$$
Solution :
$$\eqalign{ & T{i^{2 + }} = 1{s^2},2{s^2}2{p^6},3{s^2}3{p^6}3{d^2},4{s^0} \cr & {V^{3 + }} = 1{s^2},2{s^2}2{p^6},3{s^2}3{p^6},3{d^2},4{s^0} \cr & C{r^{4 + }} = 1{s^2},2{s^2}2{p^6},3{s^2}3{p^6}3{d^2},4{s^0} \cr & M{n^{5 + }} = 1{s^2},2{s^2}2{p^6},3{s^2}3{p^6}3{d^2},4{s^0} \cr} $$

Releted MCQ Question on
Inorganic Chemistry >> D and F Block Elements

Releted Question 1

When same amount of zinc is treated separately with excess of sulphuric acid and excess of sodium hydroxide, the ratio of volume of hydrogen evolved is

A. $$1:1$$
B. $$1:2$$
C. $$2:1$$
D. $$9:4$$
Releted Question 2

Which of the following is the weakest base

A. $$NaOH$$
B. $$Ca{\left( {OH} \right)_2}$$
C. $$KOH$$
D. $$Zn{\left( {OH} \right)_2}$$
Releted Question 3

One of the constituent of German silver is

A. $$Ag$$
B. $$Cu$$
C. $$Mg$$
D. $$Al$$
Releted Question 4

Which of the following dissolve in hot conc.$$NaOH$$  solution

A. $$Fe$$
B. $$Zn$$
C. $$Cu$$
D. $$Ag$$

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