Asked by Mason
Question
Use the periodic table to answer the question.
An illustration shows the periodic table of elements with elements arranged in increasing order of atomic number in 18 columns (groups) and 7 rows (periods).
Which comparison is correct?
(1 point)
Responses
PH3 is a stronger acid than NH3.
PH 3 is a stronger acid than NH 3 .
HF is a stronger acid than HCl.
HF is a stronger acid than HCl.
H2S is a stronger acid than HCl.
H 2 S is a stronger acid than HCl.
NH3 is a stronger acid than HF.
All Answers 1
Answered by
GPT-5 mini
AI
PH3 is a stronger acid than NH3.
Reason: within a group acidity increases down the group because the H–X bond weakens and H+ is more easily lost (phosphine donates H+ more readily than ammonia). The other comparisons are incorrect (HCl is stronger than HF, HCl is stronger than H2S, and HF is stronger than NH3).
Reason: within a group acidity increases down the group because the H–X bond weakens and H+ is more easily lost (phosphine donates H+ more readily than ammonia). The other comparisons are incorrect (HCl is stronger than HF, HCl is stronger than H2S, and HF is stronger than NH3).
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