CameraIcon

SearchIcon

MyQuestionIcon

1

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

Potassium Dichromate

In both cryst...

Question

In both crystalline NaHCO3 and KHCO3,HCO3- forms only dimeric anion through hydrogen bond.justify this statement.

Open in App

Solution

The bicarbonates of sodium and potassium (NaHCO3 and KHCO3) have ionic, covalent and hydrogen bonds in pure state.

In KHCO3, there is ionic bonding beween K+ and HCO3- ions, and the bonding within the bicarbonate ion (HCO3-) is covalent. And, the HCO3- ions exist as dimers by means of hydrogen bonding.

In NaHCO3, the HCO3- ions are linked in an infinite fashion by hydrogen bonding.

Suggest Corrections

thumbs-up

7

Similar questions

Q. Which of the following statements are correct?
(I) Both melting and boiling points of

H_{2} O

are higher than those of

H_{2} T e

N_{2} O_{5}

N_{2} O_{4}

N - O

bond lengths are equivalent.
(III) In both crystalline

N a H C O_{3}

K H C O_{3} . H C O_{3}^{-}

forms only dimeric anion through hydrogen bond.
(IV)

B_{2}, C_{2}, N_{2}

on further ionization (removal of single electron) form thermodynamically less stable species.

Q. Which of the following statements are correct?
(I) Both melting and boiling points of

H_{2} O

are higher than those of

H_{2} T e

N_{2} O_{5}

N_{2} O_{4}

N - O

bond lengths are equivalent.
(III) In both crystalline

N a H C O_{3}

K H C O_{3} . H C O_{3}^{-}

forms only dimeric anion through hydrogen bond.
(IV)

B_{2}, C_{2}, N_{2}

on further ionization (removal of single electron) form thermodynamically less stable species.

in solid KHCO3,HCO3–(anion) ions exist as

Monomer

Dimer

Polymer

H+ & CO3(2-)

{H C O_{3}}^{-}

ions joined by H-bonding in

K H C O_{3}

Q. In a solution of

N a H C O_{3}

, the amphiprotic anion undergoes ionization to form

H^{+}

ion and hydrolysis to form

O H^{-} i o n

H C O_{3}^{-} + H_{2} O i o n i z a t i o n ⇋ C O_{3}^{2 -} + H_{2} O

H C O_{3}^{-} + H_{2} O i o n i z a t i o n ⇋ H_{2} C O_{3} + O H^{-}

To calculate pH of the above solutions, the suitable approximation is

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Potassium Dichromate

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Potassium Dichromate

Standard XII Chemistry

Join BYJU'S Learning Program

CrossIcon