The strongest acid among the following is:
Correct answer: B. HI
- A. HF
- B. HI
- C. HCl
- D. HBr
Explanation
A is incorrect as HF is not a strong acid.B is correct as Iodine and hydrogen have the lowest bond energy,hence less energy would be required for it to lose a proton.C is incorrect as HCl isn't as strong as HI.D is incorrect as HBr isn't as strong as HI.
This question appeared on the UHS MDCAT 2010 paper, which you can sit online with every answer explained.
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About Periodic Properties and Trends
Periodic properties arise from electron configuration and effective nuclear charge, producing trends in atomic and ionic radius, ionization energy, electron affinity, electronegativity, metallic character and reactivity. Comparisons run across periods and down groups, with attention to common exceptions. The topic also relates these trends to the behavior of s-block and p-block elements.
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