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NTA Abhyas 2020
Exam
NTA Abhyas
Year
2020
Subject
Chemistry
Chapter
Classification of Elements and Periodicity in Properties

NTA Abhyas 2020 · Chemistry · Classification of Elements and Periodicity in Properties

Select the incorrect statement

Select the incorrect statement

Options

  1. A{\text{IE}_{1} of He is greater than Ne
  2. BCl\text{Cl} has greater election affinity than F\text{F}
  3. C\text{HClO}\text{> }{\text{HClO}_{2} \text{> }{\text{HClO}_{3} \text{> }{\text{HClO}_{4}
    (order of acidity)
  4. DThere are 32\text{32} elements in period 6\text{6}

Correct answer

C. \text{HClO}\text{> }{\text{HClO}_{2} \text{> }{\text{HClO}_{3} \text{> }{\text{HClO}_{4}
(order of acidity)

Step-by-step solution

Correct acidity order is:
\text{HClO}\text{< }{\text{HClO}_{2} \text{< }{\text{HClO}_{3} \text{< }{\text{HClO}_{4}
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