Out of S_(N)1 and S_(N)2 which reaction occurs with (a) inversion of configuration? (b) racemisation?

Explain the terms molecularity and order of a reaction. Give one example from each of first and second order reactions. A 0.1 M HCN solution contained 0.2 moles of KCN per litre of the solution. What was the hydronoun ion concentration of the solution. ( K_(a) for HCN =7.2xx10^(-10) )

Explain the terms molecularity and order of a reaction. Give one example from each of first and second order reactions. A 0.1 M HCN solution contained 0.2 moles of KCN per litre of the solution. What was the hydronium ion concentration of the solution. (K_(a) for HCN = 7.2 xx 10^(-10) )

Explain the law of multiple proportions by taking suitable example.

Liquation is a refining process. Explain with an example.

Explain why both dextro and laevo forms of butan-2-ol are prepared in equal proportions when S_(N)1 reaction of 2-chlorobutane is carried out in the presence of aqueous potassium hydroxide?

What is sex linked inheritance? Explain taking with examples of colourblindness and haemophilia.

What are amines? Explain three types of aliphatic amines giving one example from each. Write with equations how amines react with acid chloride?

State and explain 1st law of thermodynamics. Apply it to obtain an expression for the change in internal energy during melting process.

SN^1 reaction are accompanied by racemisation in optically active alkyl halide. Explain.