You visited us 1 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard VIII

Chemistry

Properties of Acids

The values of...

Question

The values of dissociation constants of some acids (at $25^{0} C$ ) are as follows. Indicate which is the strongest acid in water?

{1.4 \times 10}^{- 2}

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

{1.6 \times 10}^{- 4}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

{4.4 \times 10}^{- 10}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

{4.3 \times 10}^{- 7}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is C ${1.4 \times 10}^{- 2}$
More is $K_{a}$ lesser is $p K_{a} (p K_{a} = - log K_{a})$ more is acidic strength.
Option A is correct.

Suggest Corrections

Similar questions

Q. Given below are the dissociation constant values of few acids. Arrange them in order of increasing acidic strength.

H_{2} S O_{3} = 1.3 \times 10^{- 2}, H N O_{2} = 4 \times 10^{- 4}

C H_{3} C O O H = 1.8 \times 10^{- 5}, H C N = 4 \times 10^{- 10}

Q. Accumulation of lactic acid

(H C_{3} H_{5} O_{3}),

a monobasic acid in tissues leads to pain and a feeling of fatigue. In a 0.10 M aqueous solution, lactic acid is 3.7% dissociates. The value of dissociation constant,

K_{a},

for this acid will be

Value of dissociation constant of acetic acid is $10^{- 6}$ , where as dissociation constant of formic acid is $10^{- 5}$ . Which of the following will be the value of pK $_{a}$ (acetic acid) - pK $_{a}$ (formic acid)
a)10
b)1
c) $10^{- 1}$
d)-1

Q. Value of dissociation constant of acetic acid is

10^{- 6}

, where as dissociation constant of formic acid is

10^{- 5}

. Which of the following will be the value of

p K a

(acetic acid) -

p K a

(formic acid)?

Q. Hln is an acidic indicator

(K_{I n d} = 10^{- 7})

which dissociates in aqueous acidic solution of

30

mL of

0.05 M

H_{3} P O_{4} (K_{1} = 10^{- 3}, K_{2} = 10^{- 7}, K_{3} = 10^{- 13})

The value of

[\frac{I n^{⊝}}{H I n}]

is:

Join BYJU'S Learning Program

The values of dissociation constants of some acids (at 250C) are as follows. Indicate which is the strongest acid in water?

The correct option is C 1.4×10−2More is Ka lesser is pKa(pKa=−logKa) more is acidic strength.Option A is correct.

The values of dissociation constants of some acids (at $25^{0} C$ ) are as follows. Indicate which is the strongest acid in water?

The correct option is C ${1.4 \times 10}^{- 2}$
More is $K_{a}$ lesser is $p K_{a} (p K_{a} = - log K_{a})$ more is acidic strength.
Option A is correct.