321267 In acidic medium potassium dichromate acts as an oxidant according to the equation,
${\mathrm{Cr}}_2{\mathrm{O}}_7^{2-}+14{\mathrm{H}}^{+}+6{\mathrm{e}}^{-}\to 2{\mathrm{Cr}}^{3+}+7{\mathrm{H}}_2\mathrm{O}$. What is the equivalent weight of ${\mathrm{K}}_2{\mathrm{Cr}}_2{\mathrm{O}}_7$ ? (mol.
Wt. $=$ M)

321268 Which of the following statements are correct?
I. In basic solution dichromate ions are converted to chromate ions.
II. An acidified solution of ${\mathrm{K}}_2{\mathrm{Cr}}_2{\mathrm{O}}_7$ liberates iodine from iodides.
III. Potassium dichromate is used as a titrant for ${\mathrm{Fe}}^{2+}$ ions.
IV. Ammonium dichromate on heating undergoes exothermic decomposition to give ${\mathrm{Cr}}_2{\mathrm{O}}_3$
Choose the correct option.

321269 Consider the following statements,
I. Sodium dichromate is less soluble than potassium dichromate.
II. Crystals of potassium dichromate are of orange colour.
III. The chromates and dichromates are interconvertible in aqueous solution depending upon $\mathrm{pH}$ of the solution.
IV. The oxidation state of chromate and dichromate is different.
The correct statements are

321270 Chromyl chloride when dissolves in $\mathrm{NaOH}$ solution gives yellow solution. The yellow solution contains

321267 In acidic medium potassium dichromate acts as an oxidant according to the equation,
${\mathrm{Cr}}_2{\mathrm{O}}_7^{2-}+14{\mathrm{H}}^{+}+6{\mathrm{e}}^{-}\to 2{\mathrm{Cr}}^{3+}+7{\mathrm{H}}_2\mathrm{O}$. What is the equivalent weight of ${\mathrm{K}}_2{\mathrm{Cr}}_2{\mathrm{O}}_7$ ? (mol.
Wt. $=$ M)

321268 Which of the following statements are correct?
I. In basic solution dichromate ions are converted to chromate ions.
II. An acidified solution of ${\mathrm{K}}_2{\mathrm{Cr}}_2{\mathrm{O}}_7$ liberates iodine from iodides.
III. Potassium dichromate is used as a titrant for ${\mathrm{Fe}}^{2+}$ ions.
IV. Ammonium dichromate on heating undergoes exothermic decomposition to give ${\mathrm{Cr}}_2{\mathrm{O}}_3$
Choose the correct option.

321269 Consider the following statements,
I. Sodium dichromate is less soluble than potassium dichromate.
II. Crystals of potassium dichromate are of orange colour.
III. The chromates and dichromates are interconvertible in aqueous solution depending upon $\mathrm{pH}$ of the solution.
IV. The oxidation state of chromate and dichromate is different.
The correct statements are

321270 Chromyl chloride when dissolves in $\mathrm{NaOH}$ solution gives yellow solution. The yellow solution contains

321267 In acidic medium potassium dichromate acts as an oxidant according to the equation,
${\mathrm{Cr}}_2{\mathrm{O}}_7^{2-}+14{\mathrm{H}}^{+}+6{\mathrm{e}}^{-}\to 2{\mathrm{Cr}}^{3+}+7{\mathrm{H}}_2\mathrm{O}$. What is the equivalent weight of ${\mathrm{K}}_2{\mathrm{Cr}}_2{\mathrm{O}}_7$ ? (mol.
Wt. $=$ M)

321268 Which of the following statements are correct?
I. In basic solution dichromate ions are converted to chromate ions.
II. An acidified solution of ${\mathrm{K}}_2{\mathrm{Cr}}_2{\mathrm{O}}_7$ liberates iodine from iodides.
III. Potassium dichromate is used as a titrant for ${\mathrm{Fe}}^{2+}$ ions.
IV. Ammonium dichromate on heating undergoes exothermic decomposition to give ${\mathrm{Cr}}_2{\mathrm{O}}_3$
Choose the correct option.

321269 Consider the following statements,
I. Sodium dichromate is less soluble than potassium dichromate.
II. Crystals of potassium dichromate are of orange colour.
III. The chromates and dichromates are interconvertible in aqueous solution depending upon $\mathrm{pH}$ of the solution.
IV. The oxidation state of chromate and dichromate is different.
The correct statements are

321270 Chromyl chloride when dissolves in $\mathrm{NaOH}$ solution gives yellow solution. The yellow solution contains

321267 In acidic medium potassium dichromate acts as an oxidant according to the equation,
${\mathrm{Cr}}_2{\mathrm{O}}_7^{2-}+14{\mathrm{H}}^{+}+6{\mathrm{e}}^{-}\to 2{\mathrm{Cr}}^{3+}+7{\mathrm{H}}_2\mathrm{O}$. What is the equivalent weight of ${\mathrm{K}}_2{\mathrm{Cr}}_2{\mathrm{O}}_7$ ? (mol.
Wt. $=$ M)

321268 Which of the following statements are correct?
I. In basic solution dichromate ions are converted to chromate ions.
II. An acidified solution of ${\mathrm{K}}_2{\mathrm{Cr}}_2{\mathrm{O}}_7$ liberates iodine from iodides.
III. Potassium dichromate is used as a titrant for ${\mathrm{Fe}}^{2+}$ ions.
IV. Ammonium dichromate on heating undergoes exothermic decomposition to give ${\mathrm{Cr}}_2{\mathrm{O}}_3$
Choose the correct option.

321269 Consider the following statements,
I. Sodium dichromate is less soluble than potassium dichromate.
II. Crystals of potassium dichromate are of orange colour.
III. The chromates and dichromates are interconvertible in aqueous solution depending upon $\mathrm{pH}$ of the solution.
IV. The oxidation state of chromate and dichromate is different.
The correct statements are

321270 Chromyl chloride when dissolves in $\mathrm{NaOH}$ solution gives yellow solution. The yellow solution contains