Transition and Inner Transition Elements - Maharashtra Board STD 12 Chemistry Questions

Q 1MCQ1 Mark

Identify the element if it's observed and expected electronic configuration remains same as $[ Ar ] 3 d ^1 4 s ^2$.

✓
sc
B
ti
C
v
D
co

Answer: A.

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Q 2MCQ1 Mark

Identify the strongest base from following

A
$\operatorname{Pr}( OH )_3$
B
$Lu ( OH )_3$
✓
$La ( OH )_3$
D
$Sm ( OH )_3$

Answer: C.

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Q 3MCQ1 Mark

Identify the element with smallest ionic radius in +3 oxidation state from following.

A
Yb
B
Er
C
Eu
✓
Lu

Answer: D.

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Q 4MCQ1 Mark

Which among the following properties of lanthanoids is NOT true?

A
Good conductors of heat and electricity.
✓
All are non radioactive elements.
C
Have greater coordination number than six.
D
Strongly paramagnetic.

Answer: B.

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Q 5MCQ1 Mark

Identify the correct decreasing order of atomic radii from following.

A
$Pm > Yb > Ce > Tm$
✓
$ Ce > Pm > Tm > Yb$
C
$Tm > Pm > Yb$
D
$Pm > Tm > Ce > Yb$

Answer: B.

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Q 6Answer the following in one or two sentence.2 Marks

Cerium and Terbium behaves as good oxidising agents in $+4$ oxidation state. Explain.

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Q 7Answer the following in one or two sentence.2 Marks

Europium and Ytterbium behave as good reducing agents in $+2$ oxidation state explain.

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Q 8Answer the following in one or two sentence.2 Marks

What is the oxidation state of Manganese in
(i) $MnO _4^{2-}$ (ii) $MnO _4^{-}$?

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Q 9Answer the following in one or two sentence.2 Marks

Pick up the paramagnetic species from the following : $Cu^{1+}, Fe^{3+}, Ni^{2+}, Zn^{2+}, Cd^{2+}, Pd^{2+}.$

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Q 10Answer the following in one or two sentence.2 Marks

The atomic number of an element is $90$. Is this element diamagnetic or paramagnetic?

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Q 11Answer the following in brief.3 Marks

Are there an similarities between transition and inner transition metals?

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Q 12Answer the following in brief.3 Marks

Write steps involved in the metallurgical process

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Q 13Answer the following in brief.3 Marks

Which of the following will have highest fourth ionisation enthalpy,$La^{4+}, Gd^{4+}, Lu^{4+}.$

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Q 14Answer the following in brief.3 Marks

Why f-block elements are called inner transition metals?

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Q 15Answer the following in brief.3 Marks

Calculate the spin-only magnetic moment of divalent cation of a transition metal with atomic number $25$.

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Q 16Answer the following in detail.4 Marks

Why salts of $Sc^{3⊕}, Ti^{4⊕}, V^{5⊕}$ are colorless?

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Q 17Answer the following in detail.4 Marks

Write the electronic configuration of chromium and copper.

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Q 18Answer the following in detail.4 Marks

Calculate the spin only magnetic moment of $La^{3+}$. Compare the value with that given in the table.

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Q 19Answer the following in detail.4 Marks

Write the electronic configuration of $Mn^{6+}, Mn^{4+}, Fe^{4+}, Co^{5+}, Ni^{2+}.$

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Q 20Answer the following in detail.4 Marks

Fill in the blanks with correct outer electronic configurations.

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Q 21Answer the following questions:1 Mark

Differentiate between lanthanoids and actinoids.

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Q 22Answer the following questions:1 Mark

What is meant by actinoid contraction?

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Q 23Answer the following questions:1 Mark

$Lu ^{3+}$ has observed magnetic moment zero. How many unpaired electrons are present?

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Q 24Answer the following questions:1 Mark

What is meant by lanthanoid contraction?

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Q 25Answer the following questions:1 Mark

Write the expected electronic configurations of :
(1) europium $(Z=63)$,
(2) erbium $(Z=68)$.

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Transition and Inner Transition Elements question types

Transition and Inner Transition Elements questions

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Transition and Inner Transition Elements Chemistry - Transition and Inner Transition Elements

Transition and Inner Transition Elements question types

Transition and Inner Transition Elements questions

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