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NEET Exam  >  NEET Tests  >  Inorganic Chemistry for NEET  >  Test: Anomalous Behaviour: s-Block Elements (Old NCERT) - NEET MCQ

Test: Anomalous Behaviour: s-Block Elements (Old NCERT) - NEET MCQ


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10 Questions MCQ Test Inorganic Chemistry for NEET - Test: Anomalous Behaviour: s-Block Elements (Old NCERT)

Test: Anomalous Behaviour: s-Block Elements (Old NCERT) for NEET 2024 is part of Inorganic Chemistry for NEET preparation. The Test: Anomalous Behaviour: s-Block Elements (Old NCERT) questions and answers have been prepared according to the NEET exam syllabus.The Test: Anomalous Behaviour: s-Block Elements (Old NCERT) MCQs are made for NEET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Anomalous Behaviour: s-Block Elements (Old NCERT) below.
Solutions of Test: Anomalous Behaviour: s-Block Elements (Old NCERT) questions in English are available as part of our Inorganic Chemistry for NEET for NEET & Test: Anomalous Behaviour: s-Block Elements (Old NCERT) solutions in Hindi for Inorganic Chemistry for NEET course. Download more important topics, notes, lectures and mock test series for NEET Exam by signing up for free. Attempt Test: Anomalous Behaviour: s-Block Elements (Old NCERT) | 10 questions in 15 minutes | Mock test for NEET preparation | Free important questions MCQ to study Inorganic Chemistry for NEET for NEET Exam | Download free PDF with solutions
Test: Anomalous Behaviour: s-Block Elements (Old NCERT) - Question 1
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Be is not readily attacked by acids because:

Detailed Solution for Test: Anomalous Behaviour: s-Block Elements (Old NCERT) - Question 1

Due to the formation of a protective oxide layer on the surface of Be, its reactivity with acids decreases.

Test: Anomalous Behaviour: s-Block Elements (Old NCERT) - Question 2
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Be can show coordination number four while other members show a value of six. This is because of:

Detailed Solution for Test: Anomalous Behaviour: s-Block Elements (Old NCERT) - Question 2

The electronic configuration of Be is 1s22s2. We can see that there are only 4 orbitals in its valence shell( they are s and p). In other words, d orbital is absent. So, Be shows ccoordination no 4 and not 6 as like other members of its group.

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Test: Anomalous Behaviour: s-Block Elements (Old NCERT) - Question 3
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Be and Al compounds are largely covalent because of:

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Be and Al compounds are largely covalent because of high charge density leading to high polarizing power of the cations.

Test: Anomalous Behaviour: s-Block Elements (Old NCERT) - Question 4
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Li and Mg both form chlorides which are:
Detailed Solution for Test: Anomalous Behaviour: s-Block Elements (Old NCERT) - Question 4

Chlorides of both Li and Mg are deliquescent (absorb moisture from surroundings) and soluble in alcohol and pyridine. Lithium chloride, like magnesium chloride (MgCl2.6H2O) separates out from hydrated crystal LiCl.2H2O.

Test: Anomalous Behaviour: s-Block Elements (Old NCERT) - Question 5
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Li shows difference in properties than rest of the members of its group but shows similarities with:
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Due to diagonal relationship, Li resembles Mg.

Test: Anomalous Behaviour: s-Block Elements (Old NCERT) - Question 6
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Be shows difference in properties as compared to rest of the members of its group because of:
Detailed Solution for Test: Anomalous Behaviour: s-Block Elements (Old NCERT) - Question 6

Be shows anomalous behaviour because of small size, high ionization enthalpy and non availablilty of d orbitals.

Test: Anomalous Behaviour: s-Block Elements (Old NCERT) - Question 7
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Be and Al form chlorides which are:
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Be and Al forms compound with Cl as BeCl

Test: Anomalous Behaviour: s-Block Elements (Old NCERT) - Question 8
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Which of the following is a correct statement?​
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Correct option is C. Due to high polarisation power of Li, it takes oxygen atom from going CO32- to form Li2O. However. The reaction of Na is a general reaction. Rest other GI forms Nitrite on heating of their Nitrate.

Test: Anomalous Behaviour: s-Block Elements (Old NCERT) - Question 9
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Name the element which forms the stable fluoro complex anions:
Detailed Solution for Test: Anomalous Behaviour: s-Block Elements (Old NCERT) - Question 9

Fluorine forms molecules with fourteen metals because its small size and single charge as an ion allows surrounding metal atoms with more fluorines than oxygen.

Test: Anomalous Behaviour: s-Block Elements (Old NCERT) - Question 10
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Which of the following is amphoteric?
Detailed Solution for Test: Anomalous Behaviour: s-Block Elements (Old NCERT) - Question 10

BeO is amphoteric as it can react with both acids and base
BeO+2NaOH = Na2BeO2
BeO+H2SO4 + BeSO4 + H2O
On the other hand, MgO and Cao are metallic oxides and act as a base only.

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