Organic Chemistry Answers

Explain following: Reaction of silver cyanide with bromopropane gives 1-propylisonitile not npropyl cyanide. 

Write the mechanism of the reaction of allyl chloride with water.

What do you understand by ortho and para-directing activator? Explain with the help of a suitable example.

Write the mechanism of the Friedel-Crafts alkylation reactions. 

Write chemical equation(s) for following conversions : i) Phenol to benzene ii) Ethylbenzene to 1-chloro-1-phenylethane iii) Aniline to chlorobenzene iv) Phenol to 4-hydroxybenzaldehyde v) Anisole to phenol

Calculate the pH of 0.01 M aqueous solution of sodium formate at 298 K. [Given: Ka (HCOOH) =1.7 × 10−4 at 298K] 

Calculate the degree of ionisation and the pH of a 0.01 M aqueous solution of formic acid at 298K. [Given, Ka (HCOOH) = 1.7  10−4at 298K]. 

Define solubility and give the relationship between solubility and solubility product constant for sparingly soluble salts of AB types. 

State Le- Chatelier’s principle and for the following reaction at equilibrium 2SO2(g) + O2(g) ⇌ 2SO3(g) ∆H = 198 kJ Predict the effect of i. Adding SO2(g) at equilibrium ii. Decreasing the temperature iii. Reducing the volume of the container to half iv. Adding an inert gas under conditions of constant pressure.

What are amphoteric substances? Explain with the help of suitable examples.