1.
What is called spectrum?
Explain the necessity of green chemistry.
Calculate the concentration of OH \mathrm{OH} OH ion in g/L \mathrm{g} / \mathrm{L} g/L unit of solution-A.
Is the precipitation formed when both of the solutions are mixed? Analyze mathematically.
2.
What is called Nesler reagent?
Show all the bond formed in CuSO4⋅5H2O \mathrm{CuSO}_{4} \cdot 5 \mathrm{H}_{2} \mathrm{O} CuSO4⋅5H2O.
How is the element identified on the light of the stem?
Uses of the spectrum which can get from the jumping of electron to orbit number 5→3 5 \rightarrow 3 5→3 is so important-Analyze properly.
3.
Define chalcogens.
Zn has no nagnetic properties-Explain.
If HA is an organic acid, how will it dissolves in water? Explain.
Does any change of pH \mathrm{pH} pH happen by adding small amount of strong acid or base into the solution (iii)-Analyze mathematically.
4. Here, A, B, C and D are not real symbol.
Define dissociation constant?
Why is 3f 3 f 3f orbital not possible?
Compare the electron affinity of atom B and D.
Hybridization of AB4− \mathrm{AB}_{4}^{-} AB4−ion and CD3 \mathrm{CD}_{3} CD3 compound are same but bond angles are not- Analyze with logic.
5. Here, X \mathbf{X} X, is a 2nd homolog of fatty acid.
What is called Polarisation?
Why is water liquid? explain.
Determine the pOH \mathrm{pOH} pOH of solution-X.
Discuss the mechanism and role of X \mathbf{X} X solution as food preservation.
Here, A, B, C and D are not real symbol.
Here,