Factors Affecting CFSE and Conclusions

Q. 2 gram atom of A_2 reacts with 2 gram molecule of B_{4 }by this following reaction 2A_2(g)+3B_4(g)→4C which statement is true 1)A_{2 }is limmiting reagent 2)B_4 is limmiting reagent

Q. 14. In a reaction A+B2 -> A3B2 if 80 atoms of A and 100 molecules of B react then which ( A or B) is tge limiting reagent and how many molecules of A3B2 will be formed?

Q. What are the limitations of lewis dot structure ?

Q. The CFSE for octahedral $[CoC{l}_6{]}^{4-}$ is $18,000c{m}^{–1}$.
The CFSE for tetrahedral $[CoC{l}_4{]}^{2-}$ will be

1. $18,000c{m}^{–1}$
2. $16,000c{m}^{–1}$
3. $8,000c{m}^{–1}$
4. $20,000c{m}^{–1}$

Q. Which of teh following will have hishest ksp for their sulphide 1. Zn2+ , Cu2+ 2 Zn 2+, Mn 2+ 3 Cd 2+ , Bi 2+ 4 Pb2+ , Hg2+

Q.

The d - electron configurations of $M{n}^{2+},F{e}^{2+},C{o}^{3+},andN{i}^{2+}are3d^5,3d^6,3d^6,3d^8,$ respectively. Which of the following aqua complexes will exhibit the minimum paramagnetic behavior?

1. $\left[Fe\right(H_{2}O{)}_6{]}^{2+}$

2. $\left[Co\right(H_{2}O{)}_6{]}^{3+}$

3. $\left[Ni\right(H_{2}O{)}_6{]}^{2+}$

4. $\left[Mn\right(H_{2}O{)}_6{]}^{2+}$