Amines — Chemistry STD 12 Science — Question

Which method is most suitable to determine molecular mass of polymer ?

What are Vinylic halides and Aryl halide Explain with examples.### Explain classification of halogen compound containing sp² C - X bonds.

State the following: 

1. Raoult's law in its general form in reference to solutions.
2. Henry's law about partial pressure of a gas in a mixture.

Explain the following behaviours:

1. -OH group attached to a carbon of benzene ring activates it towards electrophilic substitution.
2. Reactivity of all the three classes of alcohols with conc. HCl and ZnCl₂ is different.
3. Anisole reacts with HI to give phenol and methyl iodide and not iodobenzene and methyl alcohol.

Give examples of first order reaction.

How do polar solvents help in the first step in S_N1 mechanism?

An organic compound contains 69.77% carbon, 11.63% hydrogen and rest oxygen. The molecular mass of the compound is 86. It does not reduce Tollen's reagent but forms an addition compound with sodium hydrogensulphite and give positive iodoform test. On vigorous oxidation it gives ethanoic and propanoic acid. Write the possible structure of the compound.

What is nucleoside?

Write the mechanism of the reaction of HI with methoxybenzene.