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Important Questions on The d- and f-Block Elements

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Chemistry>Inorganic Chemistry>The d- and f-Block Elements>Position of d-Block and f-Block Elements in Periodic Table
A toroid has 500 turns per unit length. If it carries a current of 2 A, the magnetic energy density inside the toroid is
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Chemistry>Inorganic Chemistry>The d- and f-Block Elements>Position of d-Block and f-Block Elements in Periodic Table
Write the mathematical form of Ampere-Maxwell circuital law.
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Chemistry>Inorganic Chemistry>The d- and f-Block Elements>Position of d-Block and f-Block Elements in Periodic Table
Which of the following statements is incorrect for pair of elements Zr - Hf?
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Chemistry>Inorganic Chemistry>The d- and f-Block Elements>Position of d-Block and f-Block Elements in Periodic Table

A 10 V cell of negligible internal resistance is connected in parallel across a battery of emf 200 V and internal resistance 38 Ω as shown in the figure. Find the value of current in the circuit. 

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Chemistry>Inorganic Chemistry>The d- and f-Block Elements>Position of d-Block and f-Block Elements in Periodic Table
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In the above circuit the current in each resistance is:
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Chemistry>Inorganic Chemistry>The d- and f-Block Elements>Position of d-Block and f-Block Elements in Periodic Table

Using Kirchhoff's rules, calculate the current through the 40 Ω and 20 Ω resistors in the following circuit:

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HARD
Chemistry>Inorganic Chemistry>The d- and f-Block Elements>Position of d-Block and f-Block Elements in Periodic Table
An iron ring of relative permeability μr has windings of insulated copper wire of n turns per metre. When the current in the windings is I, find the expression for the magnetic field in the ring.
HARD
Chemistry>Inorganic Chemistry>The d- and f-Block Elements>Position of d-Block and f-Block Elements in Periodic Table
State Kirchhoff's law for an electrical network. Using these laws deduce the condition for balance in a Wheatstone bridge.
EASY
Chemistry>Inorganic Chemistry>The d- and f-Block Elements>Position of d-Block and f-Block Elements in Periodic Table
In the given circuit diagram, the currents, I1=-0.3 A, I4=0.8 A and I5=0.4 A, are flowing as shown. The currents I2, I3 and I6, respectively, are:

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Chemistry>Inorganic Chemistry>The d- and f-Block Elements>Position of d-Block and f-Block Elements in Periodic Table
Account for the following: Zn, Cd, Hg are considered as d-block elements but not as transition elements.
 
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Chemistry>Inorganic Chemistry>The d- and f-Block Elements>Position of d-Block and f-Block Elements in Periodic Table
How many d-block elements are present in modern periodic table? 40/ 62/ 118
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Chemistry>Inorganic Chemistry>The d- and f-Block Elements>Position of d-Block and f-Block Elements in Periodic Table
General electronic configuration of transition metals is
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Chemistry>Inorganic Chemistry>The d- and f-Block Elements>Position of d-Block and f-Block Elements in Periodic Table
In which block 106th element belongs
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Chemistry>Inorganic Chemistry>The d- and f-Block Elements>Position of d-Block and f-Block Elements in Periodic Table
Generally transition elements form coloured salts due to the presence of unpaired electrons. Which of the following compounds will be coloured in solid state? 
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Chemistry>Inorganic Chemistry>The d- and f-Block Elements>Position of d-Block and f-Block Elements in Periodic Table
What are transition elements?
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Chemistry>Inorganic Chemistry>The d- and f-Block Elements>Position of d-Block and f-Block Elements in Periodic Table
Explain why Zn is not considered as transition element?
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Chemistry>Inorganic Chemistry>The d- and f-Block Elements>Position of d-Block and f-Block Elements in Periodic Table
Explain why any metal shows the highest oxidation state only in oxides and fluorides?
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Chemistry>Inorganic Chemistry>The d- and f-Block Elements>Position of d-Block and f-Block Elements in Periodic Table
The second element in third transitional series is
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Chemistry>Inorganic Chemistry>The d- and f-Block Elements>Position of d-Block and f-Block Elements in Periodic Table
What are the characteristics of the transition elements and why are they called transition elements? Which of the d-block elements may not be regarded as the transition elements?
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Chemistry>Inorganic Chemistry>The d- and f-Block Elements>Position of d-Block and f-Block Elements in Periodic Table
Which block elements are known as inner transition elements?