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In which of the following arrangements, ...

In which of the following arrangements, the sequence is not strictly according to the property written against it ?

A

`CO_(2) lt SiO_(2) lt SnO_(2) lt PbO_2, "increasing oxidising power"`

B

`HF lt HCl lt HBr lt HI` increasing acid strength

C

`NH_(3) lt PH_(3) lt AsH_(3) lt SbH_(3)" increasing basic strength"`

D

`B lt C lt O lt N"increasing first ionization enthalpy"`

Text Solution

Verified by Experts

The correct Answer is:
C
In hydrides of 15th group elements the basic strength decreases down the group and the Correct order is,
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Knowledge Check

  • In which of the following arrangements, the given sequence is not strictly according to the property indicated against it ?

    A
    `HF lt HCl lt HBr lt HI` : increasing acidie strength
    B
    `H_(2)O lt H_(2)S lt H_(2)Se lt H_(2)Te`: increasing `pK_(a)` values
    C
    `NH_(3) lt PH_(3) lt AsH_(3) lt SbH_(3)` : increasing acidic character
    D
    `CO_(2) lt SiO_(2) lt SnO_(2) lt PbO_(2)` : increasing oxidising power

  • In which of the following arrangements, the given sequence is not strictly according to the property indicated against it ?

    A
    `HF lt HCl lt HBr lt HI` : increasing acid strength
    B
    `H_(2)O lt H_(2)S lt H_(2)Se lt H_(2)Te` : increasing `pK_(a)` values
    C
    `NH_(3) lt PH_(3) lt AsH_(3) lt SbH_(3)` : increasing acidic character
    D
    `CO_(2) lt SiO_(2) lt SnO_(2) lt PbO_(2)` : increasing oxidising power

  • Which of the following arrangements the given sequence is not strictly according to the property indicated against it

    A
    `HF lt HCl lt HBr lt HI` , increasing acidic strength
    B
    `H_(2)O lt H_(2)S lt H_(2)Se lt H_(2)Te` , increasing `pK_(a)` values
    C
    `NH_(3) lt PH_(3) lt AsH_(3) lt SbH_(3)` : increasing acidic character
    D
    `CO_(2) lt SiO_(2) lt SnO_(2) lt PbO_(2)` , increasing oxidizing power

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