SATHEE: Classification of Elements and Periodicity in Properties

Classification of Elements and Periodicity in Properties - Result Question 22

####22. The stability of +1 oxidation state increases in the sequence:

[2009]

(a) $T l <$ In $< G a < A l$

(b) In $< T l < G a < A l$

(d) $A l < G a <$ In $< T l$

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Solution:

(d) The stability of +1 oxidation state increases from aluminium to thallium i.e.

$A l < G a < I n < T l$

Inert pair effect is generally exhibited by some heavier nucleus p-block elements with common molecular formula $n s^{2} n p^{1 - 6}$ . These elements have less tendency to leave their outer most s-electrons at the time of chemical reaction i.e. electrons present in s-orbital does not participate in the bond formation. For example Tl, Po, Sn, Pb, Bi.

Classification of Elements and Periodicity in Properties - Result Question 22

Solution:

Engineering Preparation

Medical Preparation

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Important Resources

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Sample Mock Test

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Classification of Elements and Periodicity in Properties - Result Question 22

Solution:

Engineering Preparation

Medical Preparation

NCERT Books & Solutions

Important Resources

Other Resources

Syllabus

Test Platform

Sample Mock Test

Mentorship

NCERT Exercise Video Solution

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