Organic Chemistry Answers

The combustion of heptane C7H16 in a constant volume calorimeter

gave the value of Qv = -4793 KJ at 25̊C. What will be their enthalpy

change of the process at 25̊C? [C7H16 (l) + 11O2 (g) = 7CO2 (g) +

8H2O (l).]

The most stable conformation of butane is anti conformation and it's least stable conformation is eclipsed conformation. Why?

Name an advantage and a disadvantage of H/Het and Het/Het eliminations.

predict how CH3 directs an attacking species(such as NO2+, CH3+, Br2 and SO3 to either the 2,3,4 position of the ring during substitution:

Give one example of isomerisation of alkane.

Why cis- is more polar comparison to trans- form of 1,3-dimethylcyclobutane ?

Which alkyl halide is more reactive to form alkane

describe the purine bio synthesis

Write the IUPAC names of the products obtained by the ozonolysis of Hex-2-ene.

Give mechanism of the following:

(i) Hydrohalogenation of an alkyne

(ii) Ozonolysis of an alkyne