In June 2024
Search & Filtering
The air-dried and sieved soil was placed into pots with a 25 cm diameter and a 27 cm height (8 kg per pot). Sulphur was used as the S source and the application rates were 0, 150, 300 mg kg−1 . The Se source was sodium selenite (Na2SeO3) and it was applied at 0 and 15 mg kg−1.
I will like to understand how they got the amount of selenite and sulphur added to the pot experiment?
An experimental data on the reaction of H2 and PO3-3 is given below:
Experiment No. Initial [PO3-3] Initial [H2] Initial Rate
1 0.100 0.100 1.50
2 0.200 0.100 3.00
3 0.100 0.200 6.00
a. What is the order of reaction with respect to [PO3-3]?
b. What is the order of reaction with respect to [H2]?
c. What is the overall reaction?
b) Discuss the role of activating, deactivating and protecting groups briefly in organic synthesis.
Give the classification of dyes based on their chemical structures. Give one example for each case.
Draw the Jabslonski diagram showing excitation and deactivation routes.
With suitable examples explain [2+2] and [4+2] cycloaddition reactions.
What are the motivating factors for the Wagner-Meerwein rearrangement? Discuss its mechanism with a suitable example.
Give five methods for generation of carbenes.
The elimination of HCl from chlorofumaric acid is 50 times faster than from chloromalic acid. Explain.
Define the Saytzeff rule
-
![Help me with my assignment!]()
Who Can Help Me with My Assignment
There are three certainties in this world: Death, Taxes and Homework Assignments. No matter where you study, and no matter…
-
![How to finish assignment]()
How to Finish Assignments When You Can’t
Crunch time is coming, deadlines need to be met, essays need to be submitted, and tests should be studied for.…
-
![Math Exams Study]()
How to Effectively Study for a Math Test
Numbers and figures are an essential part of our world, necessary for almost everything we do every day. As important…
