HSC Science (Electronics) १२ वीं कक्षा - Maharashtra State Board Question Bank Solutions

Answer the following

Give the similarities and differences in elements of 3d, 4d, and 5d series.

Write two applications of electrochemical series.

Discuss the position of d-block elements, lanthanoids and actinoids in the periodic table.

Define electrochemical series. 

How is ethyl amine prepared from methyl iodide?

How are propan-1-amine and propan-2-amine prepared from oxime?

The complex ion `[Co(H_2O)_5 (ONO)]^(2+) `

(A) linkage isomer

(B) ionisation isomer

(C) co-ordination isomer

(D) geometrical isomer

Write a short note on Hoffmann bromamide degradation.

Identify the compounds 'A' and 'B' in the following equation:

Write the chemical equation involved in the following reaction:

Hoffmann-bromamide degradation reaction

Explain the mechanism of action of hydroiodic acid on 3-methylbutan-2-ol.

Mention 'two' uses of propan-2-one.

Identify 'A' and 'B' in the following reaction and rewrite the complete reaction :

Choose the most correct option.

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

Answer in one sentence.

Which amide does produce ethanamine by Hofmann bromamide degradation reaction?

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.

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

Answer the following

Write a reaction to convert acetic acid into methylamine.

Answer the following

Explain Gabriel phthalimide synthesis.

Answer the following

Explain the ammonolysis of alkyl halides.