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In which of the following arrangements, the sequence is not strictly according to the property written against it ? (1) CO2 (3) NH3 (4) B < C < O < N : increasing first ionization enthalpy ?

In which of the following arrangements, the sequence is not strictly according to the property written against it ?
(1) CO2 < SiO2 < SnO2 < PbO2: increasing oxidising power (2) HF < HCl < HBr < HI : increasing acid strength
(3) NH3 < PH3 < AsH3 < SbH3 : increasing basic strength
(4) B < C < O < N : increasing first ionization enthalpy ?

Grade:12

2 Answers

Saurabh Koranglekar
askIITians Faculty 10336 Points
2 years ago
Dear student

The answer is option c

Regards
Vikas TU
14149 Points
2 years ago
As we move down the group, the acidic strength of hydrides increases. So, option 3 is incorrect............................

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