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Statement I : Acid strength increases in the order given as HF < hcl="" />< hbr="" />< />
Statement II : As the size of the elements F, Cl, Br, I increases down the group, the bond strength of HF, HCl, HBr and HI decreases and so the acid strength increases.
In the light of the above statements, choose the correct answer from the options given below.
  • a)
    Both statement I and Statement II are true
  • b)
    Both Statement I and Statement II are false
  • c)
    Statement I is correct but statement II is false
  • d)
    Statement I is incorrect but Statement II is true
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
Statement I : Acid strength increases in the order given as HF Statem...
Explanation:

Statement I:
- Acid strength is determined by the ability of an acid to donate a proton.
- HF is a weak acid compared to HCl, HBr, and HI due to the strong hydrogen bonding present in HF.
- Hence, the statement is true.

Statement II:
- As we move down the group from F to I, the size of the halogen atom increases.
- The bond strength of the hydrogen-halogen bond decreases as the size of the halogen atom increases.
- This results in easier dissociation of the hydrogen ion, leading to an increase in acid strength from HF to HI.
- Therefore, the statement is true.
Therefore, both statements I and II are true.
Free Test
Community Answer
Statement I : Acid strength increases in the order given as HF Statem...
In the modern periodic table, moving down the group as the size of halogen atom increases, the H – X bond length also increases as a result the bond enthalpy decreases. Hence, The acidic strength also increases.
So, the correct order of acidic strength is
HI > HBr > HCl > HF
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Statement I : Acid strength increases in the order given as HF Statement II : As the size of the elements F, Cl, Br, I increases down the group, the bond strength of HF, HCl, HBr and HI decreases and so the acid strength increases.In the light of the above statements, choose the correct answer from the options given below.a)Both statement I and Statement II are trueb)Both Statement I and Statement II are falsec)Statement I is correct but statement II is falsed)Statement I is incorrect but Statement II is trueCorrect answer is option 'A'. Can you explain this answer?
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