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QAIPM-2012-Ch-1640: NEET 2012 Chemistry - Class 12 AIPM-2012-Ch-1640 Solution: In which of the following arrangements the given sequence is…
In which of the following arrangements the given sequence is not strictly according to the property indicated against it? HF < HCl < HBr < HI: increasing acidic strength : increasing pKa values : increasing acidic character : increasing oxidising power
Multiple Choice Options
- A HF < HCl < HBr < HI : increasing acidic strength
- B H 2 O < H 2 S < H 2 Se < H 2 Te : increasing pK a values
- C NH 3 < PH 3 < AsH 3 < SbH 3 : increasing acidic character
- D CO 2 < SiO 2 < SnO 2 < PbO 2 : increasing oxidising power
Step-by-Step Verified Solution
If acidic nature is high, K a is high and pK a is low.
since pK a = � log K a
Hence the order of pK a will be
H 2 O > H 2 S > H 2 Se > H 2 Te