NCERT Solutions For Class 12 Chemistry Chapter 8: The d- and f

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NCERT Solutions for Class 12 Chemistry Chapter 8 d and f Block Elements deals with the general properties of the transition elements and inner transition elements in d block and f block. Some of the important topics of d and f block elements include:

d Block Elements
f Block Elements
Actinoids
Inner Transition Elements
Magnetic Properties of Transition Elements

Expected no.of questions: About 2 to 4 questions of total 7 marks

Download PDF: NCERT Solutions for Class 12 Chemistry Chapter 8 pdf

NCERT Solutions for Class 12 Chemistry Chapter 8

The NCERT Solutions for class 12 Chemistry Chapter 8 are as given below.

Class 12 Chemistry d & f Block Elements – Important Topics

d Block Elements Properties

The d block elements are those that have partially filled d orbitals.
The general electronic configuration of d block elements are (n-1)d⁵ns¹ or (n-1)d¹⁰ns¹.
They possess multiple oxidation states.
Atomic radii decreases as we move from lower group to higher group.
They exhibit Lanthanide contraction.

f Block Elements Properties

The f block elements are those that have partially filled f orbitals.
They are also called inner transition elements.
Inner transition elements generally are the members of group 3 but they can be seen separately as the f block elements.
f Block elements has two series – Lanthanides and Actinides.
They exhibit variable oxidation states.
Atomic radii decreases along the f block series due to lanthanide contraction.
They exhibit radioactivity.

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CBSE CLASS XII Related Questions

1.
Write the name of basic building units of proteins and nucleic acids. How can you differentiate between Fibrous and Globular proteins on the basis of their structures ?

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2.
Consider the decomposition of hydrogen peroxide \( (\mathrm{H_2O_2}) \) as per the equation given below : \[ 2\mathrm{H_2O_2} \xrightarrow[\text{Alkaline medium}]{I^-} 2\mathrm{H_2O} + \mathrm{O_2} \] The mechanism for this reaction was found to be : Step I : \( \mathrm{H_2O_2} + I^- \longrightarrow \mathrm{H_2O} + IO^- \) (slow) Step II : \( \mathrm{H_2O_2} + IO^- \longrightarrow \mathrm{H_2O} + I^- + \mathrm{O_2} \) (fast) (a) Write the rate law expression. (b) Determine the order of reaction with respect to \( \mathrm{H_2O_2} \), \( I^- \) and overall order of reaction. (c) What is the molecularity of the reaction in Step II ?

View Solution

3.
The chelating ligand used for the treatment of lead poisoning is :

Ethane-1,2-diamine
Oxalate ion
Dimethylglyoxime
EDTA

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4.
From the given data of \(E^{\circ}\) values, answer the following questions :
(I) Why \(E^{\circ}_{M^{2+}/M}\) show irregular trend in the above values ?
(II) Why is \(E^{\circ}_{Cu^{2+}/Cu}\) value exceptionally positive ?
(III) Why \(E^{\circ}_{Mn^{2+}/Mn}\) value is highly negative ?

View Solution

5.
Following reaction takes place in one step:

\(2A + B \rightarrow 2C\)

How will the rate of above reaction change if the volume of the reaction vessel is decreased to one third of its original volume? Will there be any change in the order of reaction with the reduced volume?

View Solution

6.
Draw the structure of 'X' in the following reaction:

View Solution

NCERT Solutions For Class 12 Chemistry Chapter 8: The d- and f - Block Elements

Download PDF: NCERT Solutions for Class 12 Chemistry Chapter 8 pdf

NCERT Solutions for Class 12 Chemistry Chapter 8

Class 12 Chemistry d & f Block Elements – Important Topics

CBSE CLASS XII Related Questions

1.
Write the name of basic building units of proteins and nucleic acids. How can you differentiate between Fibrous and Globular proteins on the basis of their structures ?

3.
The chelating ligand used for the treatment of lead poisoning is :

4.
From the given data of \(E^{\circ}\) values, answer the following questions :
(I) Why \(E^{\circ}_{M^{2+}/M}\) show irregular trend in the above values ?
(II) Why is \(E^{\circ}_{Cu^{2+}/Cu}\) value exceptionally positive ?
(III) Why \(E^{\circ}_{Mn^{2+}/Mn}\) value is highly negative ?

5.
Following reaction takes place in one step:

\(2A + B \rightarrow 2C\)

How will the rate of above reaction change if the volume of the reaction vessel is decreased to one third of its original volume? Will there be any change in the order of reaction with the reduced volume?

6.
Draw the structure of 'X' in the following reaction:

Similar Chemistry Concepts

Comments

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NCERT Solutions For Class 12 Chemistry Chapter 8: The d- and f - Block Elements

Download PDF: NCERT Solutions for Class 12 Chemistry Chapter 8 pdf

NCERT Solutions for Class 12 Chemistry Chapter 8

Class 12 Chemistry d & f Block Elements – Important Topics

CBSE CLASS XII Related Questions

1.Write the name of basic building units of proteins and nucleic acids. How can you differentiate between Fibrous and Globular proteins on the basis of their structures ?

3.The chelating ligand used for the treatment of lead poisoning is :

4.From the given data of \(E^{\circ}\) values, answer the following questions : (I) Why \(E^{\circ}_{M^{2+}/M}\) show irregular trend in the above values ? (II) Why is \(E^{\circ}_{Cu^{2+}/Cu}\) value exceptionally positive ? (III) Why \(E^{\circ}_{Mn^{2+}/Mn}\) value is highly negative ?

5.Following reaction takes place in one step:\(2A + B \rightarrow 2C\)How will the rate of above reaction change if the volume of the reaction vessel is decreased to one third of its original volume? Will there be any change in the order of reaction with the reduced volume?

6.Draw the structure of 'X' in the following reaction:

Similar Chemistry Concepts

Comments

SUBSCRIBE TO OUR NEWS LETTER

1.
Write the name of basic building units of proteins and nucleic acids. How can you differentiate between Fibrous and Globular proteins on the basis of their structures ?

3.
The chelating ligand used for the treatment of lead poisoning is :

4.
From the given data of \(E^{\circ}\) values, answer the following questions :
(I) Why \(E^{\circ}_{M^{2+}/M}\) show irregular trend in the above values ?
(II) Why is \(E^{\circ}_{Cu^{2+}/Cu}\) value exceptionally positive ?
(III) Why \(E^{\circ}_{Mn^{2+}/Mn}\) value is highly negative ?

5.
Following reaction takes place in one step:

\(2A + B \rightarrow 2C\)

How will the rate of above reaction change if the volume of the reaction vessel is decreased to one third of its original volume? Will there be any change in the order of reaction with the reduced volume?

6.
Draw the structure of 'X' in the following reaction: