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

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What is the action of lithium aluminum hydride in the presence of ether on the following compounds? 
a. Nitroethane 
b. 2-Methyl-1-nitropropane

Appears in 1 question paper
Chapter: [9] Coordination Compounds
Concept: Concept of Coordination Compounds >> Importance of Coordination Compounds

What is the action of lithium aluminum hydride in the presence of ether on the following compounds? 
a. Nitroethane 
b. 2-Methyl-1-nitropropane

Appears in 1 question paper
Chapter: [9] Coordination Compounds
Concept: Concept of Coordination Compounds >> Importance of Coordination Compounds

The ligand triethylenetetramine is _______.

Appears in 1 question paper
Chapter: [9] Coordination Compounds
Concept: Important Terms Pertaining to Coordination Compounds

Choose the most correct option.

The oxidation state of cobalt ion in the complex [Co(NH3)5 Br]SO4 is __________.

Appears in 1 question paper
Chapter: [9] Coordination Compounds
Concept: Terms Used in Coordination Chemistry

Answer in brief.

What are ionization isomers ? Give an example.

Appears in 1 question paper
Chapter: [9] Coordination Compounds
Concept: Isomerism in Coordination Compounds

Answer the following question.

Give valence bond description for the bonding in the complex [VCl4]-. Draw box diagrams for the free metal ion. Which hybrid orbitals are used by the metal? State the number of unpaired electrons.

Appears in 1 question paper
Chapter: [9] Coordination Compounds
Concept: Theories of Bonding in Complexes

Answer the following question.

What are cationic, anionic, and neutral complexes? Give one example of each.

Appears in 1 question paper
Chapter: [9] Coordination Compounds
Concept: Classification of Complexes

Answer the following question.

Draw geometric isomers and enantiomers of the following complex.

[Pt(en)3]4⊕

Appears in 1 question paper
Chapter: [9] Coordination Compounds
Concept: Isomerism in Coordination Compounds

Answer the following question.

Draw geometric isomers and enantiomers of the following complex.

[Pt(en)2ClBr]2⊕

Appears in 1 question paper
Chapter: [9] Coordination Compounds
Concept: Isomerism in Coordination Compounds

What are the types of ligands? Give one example of each type.

Appears in 1 question paper
Chapter: [9] Coordination Compounds
Concept: Types of Ligands

The charge on metal ion in [Fe(CN)6]4− is _________

Appears in 1 question paper
Chapter: [9] Coordination Compounds
Concept: Terms Used in Coordination Chemistry

The effective atomic number of cobalt in [Co(NH3)6]3+ is _____________

Appears in 1 question paper
Chapter: [9] Coordination Compounds
Concept: Effective Atomic Number (EAN) Rule

The geometry of [CoF6]3– complex ion is _______.

Appears in 1 question paper
Chapter: [9] Coordination Compounds
Concept: Terms Used in Coordination Chemistry

Write oxidation number of iron in [Fe(CO)5]

Appears in 1 question paper
Chapter: [9] Coordination Compounds
Concept: Terms Used in Coordination Chemistry

Write four postulates of Werner’s theory.

Appears in 1 question paper
Chapter: [9] Coordination Compounds
Concept: Terms Used in Coordination Chemistry

Write one example of each of bidentate and ambidentate ligand.

Appears in 1 question paper
Chapter: [9] Coordination Compounds
Concept: Types of Ligands

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

Appears in 1 question paper
Chapter: [9] Coordination Compounds
Concept: Isomerism in Coordination Compounds

Define Anionic sphere complex.

Appears in 1 question paper
Chapter: [9] Coordination Compounds
Concept: Terms Used in Coordination Chemistry

Draw optical isomers of [Co(en)3]3+.

Appears in 1 question paper
Chapter: [9] Coordination Compounds
Concept: Isomerism in Coordination Compounds

Write the name of isomerism in the following complexes:

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

Appears in 1 question paper
Chapter: [9] Coordination Compounds
Concept: Isomerism in Coordination Compounds
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