HSC Science Class 11 - Tamil Nadu Board of Secondary Education Question Bank Solutions

Consider the nitration of benzene using mixed con H₂SO₄ and HNO₃ if a large quantity of KHSO₄ is added to the mixture, the rate of nitration will be ______.

is

Which one of the following is non aromatic?

Which of the following compounds will not undergo Friedal – crafts reaction easily ? (NEET)

Some meta-directing substituents in aromatic substitution are given. Which one is most deactivating?

Which of the following can be used as the halide component for friedal - crafts reaction?

An alkane is obtained by decarboxylation of sodium propionate. Same alkane can be prepared by ______.

Which of the following is aliphatic saturated hydrocarbon?

Identify the compound 'Z' in the following reaction

\[\ce{C2H6O ->[Al2O3][623 K] X ->[O3] Y ->[Zn/H2O] (Z)}\]

2 – butyne on chlorination gives ______.

Give IUPAC name for the following compound.

Ethyl isopropyl acetylene

Give IUPAC name for the following compound.

\[\ce{CH ≡ C – C ≡ C – C ≡ CH}\]

Identify the compound A, B, C and D in the following series of reactions.

Write short notes on ortho, para directors in aromatic electrophilic substitution reactions.

How is propyne prepared from an alkylene dihalide ?

Describe the mechanism of Nitration of benzene.

Suggest a simple chemical test to distinguish propane and propene.

Write the chemical equations for combustion of propane.

How does Huckel rule help to decide the aromatic character of a compound?

Suggest the route for the preparation of the following from benzene.

3 – chloro nitrobenzene