question_answer

Conjugate base for Bronsted acids \[{{H}_{2}}O\]and HF are:                                      [NEET 5-5-2019]

A) \[O{{H}^{}}\]and\[{{F}^{}}\], respectively

B) \[{{H}_{3}}{{O}^{+}}\]and\[{{H}_{2}}{{F}^{+}}\], respectively

C) \[O{{H}^{}}\]and\[{{H}_{2}}{{F}^{+}}\], respectively

D) \[{{H}_{3}}{{O}^{+}}\]and\[{{F}^{}}\], respectively

Correct Answer: A

Solution :

Bronsted Acids or \[{{H}_{2}}O\]& HF             Bronsted Acid \[{{H}_{3}}{{O}^{+}},{{H}_{2}}{{F}^{+}}\] Bronsted Base \[\xrightarrow{-{{H}^{+}}}\] \[O{{H}^{\bar{\ }}},\text{ }{{F}^{\bar{\ }}}\]