HSC Science (Electronics) इयत्ता १२ वी - Maharashtra State Board Question Bank Solutions for Chemistry

Explain the structure of ClF₃

How is chlorobenzene converted into diphenyl/biphenyl?

Which of the following complexes will give a white precipitate on treatment with a solution of barium nitrate?

1. [Cr(NH₃)₄SO₄] Cl
2. [Co(NH₃)₄Cl₂] NO₂
3. [Cr(NH₃)₄Cl₂]SO₄
4. [CrCl₂(H₂O)₄]Cl

How are proteins classified on the basis of molecular shapes?

Draw structure of Chlorine trifluoride

Explain refining of nickel by Mond process.

Acetaldehyde, when treated with which among the following reagents does NOT undergo addition reaction?

(A) Ammonia

(B) Hydroxylamine

(C) Ammoniacal silver nitrate

(D) Semicarbazide

What is peptide linkage?

How is tripeptide formed?

Discuss the mechanism of alkaline hydrolysis of bromomethane.

Write the reactions involved in extraction of silver from its ore by leaching process.

What is the action of the following reagents on phenol - Bromine in CS₂ at low temperature.

Write balanced chemical equations for action of ammonia on - formaldehyde

Derive the relationship between relative lowering of vapour pressure and molar mass of nonvolatile solute.

How are the following compounds prepared?

benzaldehyde from benzene

Discuss the optical activity of lactic acid.

For a chemical reaction, A→ products, the rate of reaction doubles when the concentration of
‘A’ is increased by a factor of 4, the order of reaction is

(A) 2

(B) 0.5

(C) 4

(D) 1

Which of the following is the first oxidation product of secondary alcohol?

(A) Alkene

(B) Aldehyde

(C) Ketone

(D) Carboxylic acid

Explain the mechanism of alkaline hydrolysis of tert-butyl bromide with energy profile diagram.

Mention the names of various steps involved in the extraction of pure metals from their ores.