Haloalkanes and Haloarenes — Chemistry STD 12 Science — Question

For the complex [NiCI₄]^2-, write

1. The IUPAC name.
2. The hybridization type.
3. The shape of the complex.

(Atomic no. of Ni = 28)

Write IUPAC names of the following coordination compounds:

1. K₃[Fe(C₂O₄)₃]
   
2. K₂[PdCl₄]
   

Calculate emf of the following cell at 25^°C:
Fe|Fe²⁺(0.001M)||H⁺(0.01M)|H₂(g) (1bar)|Pt(s)
E^o(Fe²⁺| Fe) = –0.44 V E^o(H⁺|H₂) = 0.00V

The rate of a particular reaction triples when temperature changes from 50°C to 100°C. Calculate the activation energy of the reaction.

[log 3 = 0.4771; R = 8.314 JK^-1 mol^-1].

The Fischer projection of D-Glucose is given alongside.
What happens when L-Glucose is treated with Tollens’ reagent?

During nuclear explosion, one of the products is ⁹⁰Sr with half-life of 28.1 years. If 1μg of ⁹⁰Sr was absorbed in the bones of a newly born baby instead of calcium, how much of it will remain after 10 years and 60 years if it is not lost metabolically.

A solution contains 1g mol. each of p-toluene diazonium chloride and pnitrophenyl diazonium chloride. To this 1g mol. of alkaline solution of phenol is added. Predict the major product. Explain your answer.

1. Write the IUPAC name of the complex [Cr(NH₃)₄ Cl₂]Cl.
2. What type of isomerism is exhibited by the complex [Co(en)₃]³⁺?

(en= ethane-1,2-diamine)

3. Why is [NiCl₄]^2–paramagnetic but [Ni(CO)₄] is diamagnetic?

(At. nos.: Cr= 24, Co=27, Ni= 28)