Organic Chemistry Answers

Define a nucleophile and nucleophilicity. How is the nucleophilicity different from the basicity? Explain with the help of an example

1. what are the possible products formed when 2-methylbutan-2-ol is heated with concentrated H2SO4. why two products are possible Explain.

We have an iodine solution (25cm3

). It is titrated with sodium thiosulfate (0.1 mol dm-3).

With this, around 17.6cm3

of iodine solution reacted. The concentration of iodine is

then found out to be ͚x͛ mol dm-3 and ͚y͛ g dm-3

.

Evaluate: (y – x)?

Use the following NMR- and mass-spectral data to identify the structures of two unknown compounds, A and B. 

B: ¹H NMR: δ = 1.00 (s, 9 H), 1.17 (s, 6 H), 1.28 (s, 2 H), and 1.42 (s, 2 H) ppm. Mass spectrum m/z (relative intensity) = 129(0.05), 114(3), 72(4), and 58(100).

Calculate the degree of ionisation and the ph of a 0.01M aqueous solution of formic acid at 298k. Given Ka(HCOOH) = 1.7×10^-4 at 298k.

Differentiate between conductance and conductivity of an electrolytic solution.