pKa of boric acid in water is nearly 9.0...

pKa of boric acid in water is nearly 9.00. On adding glucose in boric acid solution, pKa of reaction becomes:

A

`gt 9`

B

`lt 9`

C

Remains 9

D

can be either `gt 9 or lt 9`

Text Solution

Verified by Experts

The correct Answer is:

B

On adding glucose, Boric acid forms stable chelated complex & its acidic character increases, `Ka uarr pKa darr`

Promotional Banner

Promotional Banner

Topper's Solved these Questions

NTA TPC JEE MAIN TEST 104
NTA MOCK TESTS|Exercise CHEMISTRY (SUBJECTIVE NUMERICAL)|10 Videos
NTA TPC JEE MAIN TEST 103
NTA MOCK TESTS|Exercise CHEMISTRY|29 Videos
NTA TPC JEE MAIN TEST 105
NTA MOCK TESTS|Exercise CHEMISTRY|30 Videos

NTA MOCK TESTS-NTA TPC JEE MAIN TEST 104-CHEMISTRY (SUBJECTIVE NUMERICAL)

pKa of boric acid in water is nearly 9.00. On adding glucose in boric ...
Text Solution
|
The total number of lone pairs of electrons in I(3)^(-) ion is ..........
Text Solution
|
Lithium hydride is used in the synthesis of other hydrides. LiH +B(...
Text Solution
|
Methyl cyanide underset("conc. "HCl)overset(2[H],SnCl(2))to P overset...
Text Solution
|
'X' moles of conc. hydroiodic acid react with acetamide in the presenc...
Text Solution
|
How many alcohols from the following set gives geometric isomers on de...
Text Solution
|
What is the pH of the resulting solution when equal volumes of 0.1 M N...
Text Solution
|
In the Freundlich adsorption isotherm, the value of ((1)/(n)) is betw...
Text Solution
|
A metal crystallises in a simple cubic unit cell. If the length of the...
Text Solution
|
The maximum number of electrons in a subshell with n = 4 and l=3 is ....
Text Solution
|
Consider a first order gas phase decomposition reaction given below: A...
Text Solution
|