HSC Science (General) 12th Standard Board Exam - Maharashtra State Board Important Questions for Chemistry

Write four postulates of Werner’s theory.

Write one example of each of bidentate and ambidentate ligand.

Draw the geometrical isomers of the following complexes [Pt(NH₃)(H₂O)Cl₂].

Define Anionic sphere complex.

Draw optical isomers of [Co(en)₃]³⁺.

Write the name of isomerism in the following complexes:

[Cu(NH₃)₄] [PtCl₄] and [Pt(NH₃)₄] [ CuCl₄]

Explain monodentate and ambidentate ligands with example.

Explain cationic, anionic and neutral sphere complexes w ith example.

Draw geometric isomers of the following complex.

Geometrical isomers of Pt(NH₃)₂Cl₂

Explain the formation of [CoF₆]^3Θ complex with respect to

1. Hybridisation
2. Magnetic properties
3. Inner/outer complex
4. Geometry

Define Distereoisomers.

Give cis isomer of [Co(NH₃)₄Cl₂]^⊕.

Give trans isomer of [Co(NH₃)₄Cl₂]^⊕.

What are structural isomers?

Draw the geometrical isomers of the following complexes [Co(NH₃)₄Cl₂]⁺

Calculate effective atomic number of \[\ce{[Co(NH3)6]^3+}\] ion.

Mention the number of unpaired electrons and geometry of the following complex:

\[\ce{[Ni(Cl)4]^{2-}}\]

Mention the number of unpaired electrons and geometry of the following complex:

\[\ce{[Ni(CN)4]^2-}\]

Write the name of a hexadentate ligand. 

Identify the product ‘D’ in the following sequence of reactions:

\[\ce{H3C - CH2 - CH2 - Cl \underset{KOH}{\overset{Alc}{->}} 'B' \overset{HBr}{->} 'C' \underset{Elther}{\overset{Na}{->}}'D'}\]