HSC Science इयत्ता ११ - Tamil Nadu Board of Secondary Education Question Bank Solutions

Silver propionate when refluxed with Bromine in carbon tetrachloride gives ______.

Give reasons for the polarity of C – X bond in haloalkane.

Mention any three methods of preparation of haloalkanes from alcohols.

Compare S_N¹ and S_N² reaction mechanisms.

t – butyl chloride reacts with aqueous KOH by S_N¹ mechanism while n – butyl chloride reacts with S_N² mechanism.

p – dichlorobenzene has a higher melting point than those of o – and m – dichlorobenzene.

In an experiment ethyliodide in ether is allowed to stand over magnesium pieces. Magnesium dissolves and product is formed

1. Name the product and write the equation for the reaction.
2. Why all the reagents used in the reaction should be dry? Explain.
3. How is acetone prepared from the product obtained in the experiment.

Predict the product when Bromo ethane is treated with the following.

KNO₂

Predict the products when Bromo ethane is treated with the following.

AgNO₂

Write a short note on Dows Process.

Starting from CH₃MgI, How will you prepare the following?

Ethyl acetate

Starting from CH₃MgI, How will you prepare the following?

Iso propyl alcohol

Complete the following reaction.

\[\ce{CH3 - CH = CH2 + HBr ->[Peroxide]}\]

Complete the following reaction.

\[\ce{CH3 - CH2 - Br + NaSH ->[alcohol][H2O]}\]

The simplest alkene (A) reacts with HCl to form a compound (B). Compound (B) reacts with ammonia to form compound (C) of molecular formula C₂H₇N. Compound (C) undergoes carbylamine test. Identify (A),
(B) and (C).

Bhopal Gas Tragedy is a case of ________.

Haemoglobin of the blood forms carboxy haemoglobin with ______.

Which sequence for green house gases is based on GWP?

Photo chemical smog formed in congested metropolitan cities mainly consists of ______.

The pH of normal rain water is ______.