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Among the nitrates of alkaline earth metals, the thermal stability of Mg(NO3)2 and Sr(NO3)2 respectively are:

Option 1 -

Poor and poor

Option 2 -

High, poor

Option 3 -

High and high

Option 4 -

Poor, high

0 2 Views | Posted a month ago
Asked by Shiksha User

  • 1 Answer

  • V

    Answered by

    Vishal Baghel | Contributor-Level 10

    a month ago
    Correct Option - 4


    Detailed Solution:

    Thermal stability of compound is directly proportional to large anion of s-block elements:

    T.S ∝ 1/ (PP of cation)

    And p.p. ∝ charge ∝ 1/size, So, [T.S. ∝ size ∝ 1/ (charge)]

    So, Sr [NO? ]? is highly stable

    But Mg (NO? )? ⇒ poor

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