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

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The hybridisation of nitrogen in primary amine is ____________.

Isobutylamine is an example of ______.

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Which type of amine does produce N₂ when treated with HNO₂?

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Carbylamine test is given by ____________.

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Which of the following compounds will dissolve in aqueous NaOH after undergoing reaction with Hinsberg reagent?

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Identify ‘B’ in the following reactions

\[\ce{CH3 - C ≡ N ->[Na/C2H5OH] A ->[NaNO2/dilHCl]B}\]

Write the IUPAC name of the following structure:

Answer in one sentence.

Which amide does produce ethanamine by Hofmann bromamide degradation reaction?

Write the IUPAC name of the following structure:

\[\begin{array}{cc}\ce{COOH}\\|\phantom{......}\\\ce{COOH}\end{array}\]

Answer in one sentence.

Predict the product of the following reaction.

\[\ce{Nitrobenzene ->[Sn/conc.HCl]?}\]

Answer the following

Identify A and B in the following reactions.

\[\ce{C6H5CH2Br->[alco.][KCN]A ->[Na/ethanol]B.}\]

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A disulphide link gives rise to the following structure of a protein.

Give scientific reasons:

α-Amino acids have high melting points compared to the corresponding amines or carboxylic acids of comparable molecular mass.

Answer the following

Write a reaction to convert acetic acid into methylamine.

Give scientific reasons:

On boiling egg albumin becomes opaque white.

Write the names and schematic representations of all the possible dipeptides formed from alanine, glycine and tyrosine.

Draw a neat diagram for the following:

Zwitter ion

Answer the following

Explain Gabriel phthalimide synthesis.

Draw a neat diagram for the following:

Secondary structure of protein

Draw a neat diagram for the following:

Enzyme catalysis