Question
Short note: Sulphonation of Aniline.
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Calculate the number of unit cells in 8·1 g of aluminium if it crystallises in a face-centered cubic (f.c.c.) structure. $($Atomic mass of $Al = 27$ g mol$^{-1})$
→Explain the classification of amine compounds.
Why is nitric oxide paramagnetic in gaseous state but the solid obtained on cooling it is diamagnetic?
When 3-methylbutan-2-ol is treated with HBr, the following reaction takes place:$\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \text{Br}\\\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ |\\\text{CH}_3-\text{CH}-\text{CH}-\text{CH}_3\xrightarrow{\ \ \ \text{HBr} \ \ }\text{CH}_3-\text{C}-\text{CH}_2-\text{CH}_3\\\ \ \ \ \ \ \ \ \ \ \ \ \ \ |\ \ \ \ \ \ \ \ \ \ |\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ |\\\ \ \ \ \ \ \ \ \ \ \ \ \ \text{CH}_3\ \ \ \ \text{OH}\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \text{CH}_3$
Give a mechanism for this reaction.
(Hint: The secondary carbocation formed in step II rearranges to a more stable tertiary carbocation by a hydride ion shift from 3rd carbon atom.)
→Give a mechanism for this reaction.
(Hint: The secondary carbocation formed in step II rearranges to a more stable tertiary carbocation by a hydride ion shift from 3rd carbon atom.)
What is meant by tertiary structure of proteins?
Give reasons for the following observations:
Haloarenes are less reactive than haloalkanes towards nucleophillic substitution reaction.
Haloarenes are less reactive than haloalkanes towards nucleophillic substitution reaction.
Write note on inner transition elements ### Write note on f-Block element
What is meant by the term "chromatography"?
Complete the following reactions:
Define the term ‘osmotic pressure’. Describe how the molecular mass of a substance can be determined on the basis of osmotic pressure measurement.