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P Block Elements question

2005 · Q98
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P Block Elements question

2005 · Q98

NEETChemistryP Block ElementsMCQ+4 / −1
What is the correct relationship between the pH of isomolar solutions of sodium oxide, Na2O (pH1), sodium sulphide, Na2S (pH2), sodium srlenide, Na2Se (pH3) and sodium telluride Na2Te (pH4)?
  1. A
    pH1 > pH2 > pH3 > pH4
  2. B
    pH1 > pH2 ≈\approx≈ pH3 > pH4
  3. C
    pH1 < pH2 < pH3 < pH4
  4. D
    pH1 < pH2 < pH3 ≈\approx≈ pH4
View written solutionFree

Correct answer: A

Basic character decreases down the group Thus Na2O is most basic.

AIPMT 2005 Chemistry - p-Block Elements Question 33 English Explanation


We know that more the basic compound more is the pH.

Hence, pH1 > pH2 > pH3 > pH4

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