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

What is a relative lowering of vapour pressure?

According to VSEPR theory, the repulsion between different parts of electrons obey the order.

Shape of ClF₃ is ______.

Explain VSEPR theory. Applying this theory to predict the shapes of IF₇ and SF₆.

Lassaigne’s test for the detection of nitrogen fails in ______.

Connect pair of compounds which give blue colouration/precipitate and white precipitate respectively, when their Lassaigne’s test is separately done.

Describe the reactions involved in the detection of nitrogen in an organic compound by Lassaigne method.

What should be the correct IUPAC name of diethyl chloromethane?

The name of C₂F₄C₁₂ is ______.

Which of the following reagent is helpful to differentiate ethylene dichloride and ethylidene chloride?

Assertion: In mono haloarenes, electrophilic substitution occurs at ortho and para positions.

Reason: Halogen atom is a ring deactivator.

Consider the reaction,

\[\ce{CH3CH2CH2Br + NaCN → CH3CH2CH2CN + NaBr}\]

This reaction will be the fastest in

Ethylidene chloride on treatment with aqueous KOH gives ______.

Chloroform reacts with nitric acid to produce ______.

Classify the following compound in the form of alkyl, allylic, vinyl, benzylic halides.

\[\ce{CH3 – CH = CH – Cl}\]

Classify the following compound in the form of alkyl, allylic, vinyl, benzylic halides.

C₆H₅CH₂I

Classify the following compound in the form of alkyl, allylic, vinyl, benzylic halides.

\[\begin{array}{cc}\ce{CH3 - CH - CH3}\\
|\phantom{..}\\\ce{Br}\end{array}\]

Classify the following compound in the form of alkyl, allylic, vinyl, benzylic halides.

CH₂ = CH – Cl

Why chlorination of methane is not possible in dark?

How will you prepare n propyl iodide from n-propyl bromide?