Which one of these statements about strong acids is true? a....

Which one of these statements about strong acids is true? a. Strong acids are 100% ionized in water. b. All strong acids have H atoms bonded to electronegative oxygen atoms. c. The conjugate base of a strong acid is itself a strong base. d. Strong acids are very concentrated acids. e. Strong acids produce solutions with a higher pH than weak acids.

Transcript

00:01 Hi friends.

00:01 So in this question we have been asked that which of the given options is true.

00:05 The first option being strong assets are 100 % dissociated in water.

00:09 Now strong assets have a degree of decision alpha which is close to 95 to 100%.

00:17 Now degree of dissociation is basically the fraction between the dissociated upon the number of undissociated molecules.

00:30 Having a 100 % degree of dissociation means that almost all the molecules.

00:35 Are in the dissociated form that is all of them have lost their protons.

00:43 Right therefore we can say that this statement is true.

00:51 Okay, coming to the next one, it says that strong acids have hydrogen bonded to electron negative atom like oxygen, right? but this statement is false because we can just take an example of hcl in which the hydrogen, hydrogen is bonded to a chlorine atom and not an oxygen atom but still hl is a strong acid.

01:18 Therefore this statement is false.

01:21 Come to the next one, it is a conjugate base of a strong acid is a strong base.

01:27 This statement is also false.

01:30 This is because we know that for a conjugate acid based pair, ka times kb where ka is the acid decision constant of the acid and kb is the base deization constant of its corresponding conjugate base is equal to k w which is a constant right so from this we can say that k a is equal to a constant by ab or a a is inversely proportional to k b so stronger and acid higher will be its k a and therefore lower will be the k b of its corresponding conjugate base therefore we will be the conjugate base.

02:16 Therefore we can say that this statement is false...

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