Question:
Which of the following statement is not true ?
Which of the following statement is not true ?
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Acidic nature is inversely proportional to bond dissociation energy.
Updated On: Sep 12, 2022
- HF is stronger acid than HCI
- Among halide ions, iodide is the most powerful reducing agen
- Fluorine is the only halogen that does not show a variable oxidation state
- HOCI is a stronger acid than HOBr
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The Correct Option is A
Solution and Explanation
Due to the strong hydrogen-fluorine bond, the proton is not removed easily; hence, HF is the weakest acid. More bond dissociation energy is required because of the high electronegativity of the F atom,
\[Acidic \ Nature\propto {1 \over bond\ dissociation\ energy}\]Therefore, HF is not a stronger acid than HCl due to intermolecular hydrogen bonding.
Hence A) HF is a stronger acid than HCI is not true.
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Concepts Used:
P-Block Elements
- P block elements are those in which the last electron enters any of the three p-orbitals of their respective shells. Since a p-subshell has three degenerate p-orbitals each of which can accommodate two electrons, therefore in all there are six groups of p-block elements.
- P block elements are shiny and usually a good conductor of electricity and heat as they have a tendency to lose an electron. You will find some amazing properties of elements in a P-block element like gallium. It’s a metal that can melt in the palm of your hand. Silicon is also one of the most important metalloids of the p-block group as it is an important component of glass.
P block elements consist of:
- Group 13 Elements: Boron family
- Group 14 Elements: Carbon family
- Group 15 Elements: Nitrogen family
- Group 16 Elements: Oxygen family
- Group 17 Elements: Fluorine family
- Group 18 Elements: Neon family