HSC Science (Computer Science) 12th Standard Board Exam - Maharashtra State Board Question Bank Solutions for Chemistry

Explain the fact that in alkyl aryl ethers, the alkoxy group is ring activating and ortho/para directing towards electrophilic aromatic substitution.

How will you prepare diethyl ether by dehydration of alcohol?

What are the limitations to prepare ether by this method?

What is the action of following on diethyl ether?

dil. H₂SO₄

What is the action of following on diethyl ether?

PCl₅

What is the action of Grignard reagent on benzonitrile?

Write reagent for conversion of alkyl nitrile into aldehyde.

The strongest base amongst the following is

Tertiary amines have lowest boiling points because ________________

Arrange the following compounds in increasing order of their boiling points.

Ethyl alcohol, Ethyl amine, Ethanoic acid, Ethane

Distinguish between methanamine, dimethanamine and trimethanamine using Hinsberg’s reagent.

Write the factors influencing the basicity of amines.

Discuss four points of anomalous behavior of fluorine.

Write the expression to calculate maximum work done when 1 mole of an ideal gas expands isothermally and reversibly from V₁ to V₂.

Nylon 6, 6 is a condensation polymer of hexamethylenediamine and _____________

Write the name of the catalyst used for preparation of high density polythene polymer.

Monomer used for preparation of polyacrylonitrile is _____________

0.022 kg of CO₂ is compressed isothermally and reversibly at 298 K from an initial pressure of 100 kPa when the work obtained is 1200 J, calculate the final pressure.

Monomers ethylene glycol and terephthalic acid undergo condensation polymerization to give polymer called ___________

Monomer of natural rubber is __________