Question

Which of the following statements correctly summarize the influence of partner A on the strength of the acid HA? Choose one or more For partner atoms in the same group. HA becomes more acidic as A increases in size. For partner atoms in the same period, HA will become stronger as A becomes smaller HA will always become more acidic as the electronegativity of Aincreases HA becomes more acidic as the number of ionizable H atoms in the structure increases. HA becomes more acidic as the partner atom A becomes more metallic. Part 2 (1 point) See Hint Rank the following binary acids according to increasing acid strength, based on the factors identified in part 1. For compounds with more than one ionizable H. consider the loss of a single Honly. Question List (5 items) og and drop into the approp

Answer 1

Part.A Ans :- Correct options are :

(a). " For partner atoms in the same group, HA becomes more acidic as A increases in size" because down the group of periodic table bond dissociation enthalpy decreases therefore acidic strength increases as HI more stronger acid than HF and

(b). " For partner atoms in the same period, HA will become stronger as A becomes smaller " because. left to right in periodic acidic strength increases.

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Incorrect statements are :

(c). HA will always become more acidic as the electronegativity of A increases is not correct, because as the electronegativity of A increases acidic strength decreases as HF is least acidic than HI.

(d). HA becomes more acidic as the number of ionizable H atoms in the structure increases is not correct, because acidic strength depends upon first dissociation constant that K_a1 as HI stronger acid than H₂O.

(e). HA becomes more acidic as the partner atom A becomes more metallic is not correct, because hydrides of metals are basic in nature while hydrides of non-metals are acidic as NaH is basic while HF is acidic.