Which of the following is the weakest acid?

Question

Which of the following is the weakest acid? (A) HCl (B) HF (C)  H2SO4  (D)  HNO3

Tardigrade Admin · Accepted Answer

Higher the tendency to give H + ion (ie, to undergo ionisation), stronger will be the acid or vice-versa. HF has poor tendency to give H + ion, hence it is the weakest acid among the given. The order of acidity of given acids is H 2 SO 4> HNO 3> HCl > HF

Q. Which of the following is the weakest acid?

$H Cl$

$H F$

$H_{2} S O_{4}$

$H N O_{3}$

Higher the tendency to give $H^{+}$ ion (ie, to undergo ionisation), stronger will be the acid or vice-versa.

$H F$ has poor tendency to give $H^{+}$ ion, hence it is the weakest acid among the given.

The order of acidity of given acids is

$H_{2} S O_{4} > H N O_{3} > H Cl > H F$

Q. Which of the following is the weakest acid?

HCl

HF

H2​SO4​

HNO3​

Higher the tendency to give H+ ion (ie, to undergo ionisation), stronger will be the acid or vice-versa. HF has poor tendency to give H+ ion, hence it is the weakest acid among the given. The order of acidity of given acids is H2​SO4​>HNO3​>HCl>HF

$H Cl$

$H F$

$H_{2} S O_{4}$

$H N O_{3}$

Higher the tendency to give $H^{+}$ ion (ie, to undergo ionisation), stronger will be the acid or vice-versa.

$H F$ has poor tendency to give $H^{+}$ ion, hence it is the weakest acid among the given.

The order of acidity of given acids is

$H_{2} S O_{4} > H N O_{3} > H Cl > H F$