Class 12th

(a – 1) * 2 + (b – 2) * 5 + (g – 3) * 1 = 0

2a + 5b + g – 15 = 0

Also, P lie on line

a + 1 = 2λ

b – 2 = 5λ

g – 4 = λ

2 (2λ – 1) + 5 (5λ + 2) + λ + 4 – 15 = 0

4λ + 25λ + λ – 2 + 10 + 4 – 15 = 0

30λ – 3 = 0

$\lambda =\frac{1}{10}$  

a + b + g = (2λ – 1) + (5λ + 2) + (λ + 4)

$=8\lambda +5=\frac{8}{10}+5=5.8$

Group number = 11 (Atomic number = 111)

Coca alkaloid or cocaine is obtained from Erythroxylum coca.

Functional group should get the lowest possible number.

Please find the solution below:

The boiling point of alcohol increases with increase in the number of carbon atoms. So, hexanol has maximum boiling point.

 

Complete reaction is as follows:

The given reaction is called hydroboration oxidation.

Adenine forms hydrogen bonds with thymine whereas cytosine forms hydrogen bonds with guanine.

The 'X' in reaction is 3-hydroxybutanal. It is an aldol reaction. Complete reaction is an follows:

Ethyl benzoate can be prepared by heating benzoic acid with ethyl alcohol in presence of dry HC1 or conc. The reaction is called as esterification reaction.