(C) When potassium dichromate $(K_2Cr_2O_7)$ is heated with concentrated sulphuric acid $(H_2SO_4)$ and a soluble chloride (like $NaCl$),it produces r

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(C) When potassium dichromate $(K_2Cr_2O_7)$ is heated with concentrated sulphuric acid $(H_2SO_4)$ and a soluble chloride (like $NaCl$),it produces reddish-brown vapours of chromyl chloride $(CrO_2Cl_2)$. This is known as the chromyl chloride test. The reaction is: $K_2Cr_2O_7 + 4NaCl + 6H_2SO_4 \rightarrow 2KHSO_4 + 4NaHSO_4 + 2CrO_2Cl_2 + 3H_2O$.

Class 12 Chemistry The d- and f-Block Elements Compounds of Transitional elements

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Potassium dichromate when heated with concentrated sulphuric acid and a soluble chloride,gives brown-red vapours of:

JEE MAIN 2013 All JEE MAIN

A
$CrO_3$
B
$CrCl_3$
C
$CrO_2Cl_2$
D
$Cr_2O_3$

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The d- and f-Block Elements

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Compounds of Transitional elements

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JEE MAIN 2013 Paper All JEE MAIN years →

Which one of the following ions participates in the production of $ATP$ from the oxidation of glucose?

EasyAP EAMCET 2017

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Correct statement for $CeO_2$ is/are:
$1$. It is diamagnetic in nature.
$2$. It is a good oxidising agent.
$3$. It is a colourless compound.

Easy

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Amphoteric oxide$(s)$ of $Mn$ is/are:

Medium

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The colour and magnetic nature of manganate ion $MnO_4^{2-}$ is-

MediumMHT CET 2017

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Indicate the steps in the preparation of:
$(i)$ $K_2Cr_2O_7$ from chromite ore.
$(ii)$ $KMnO_4$ from pyrolusite ore.

Medium

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Potassium dichromate when heated with concentrated sulphuric acid and a soluble chloride,gives brown-red vapours of:

Similar Questions

Which one of the following ions participates in the production of $ATP$ from the oxidation of glucose?

Correct statement for $CeO_2$ is/are:$1$. It is diamagnetic in nature.$2$. It is a good oxidising agent.$3$. It is a colourless compound.

Amphoteric oxide$(s)$ of $Mn$ is/are:

The colour and magnetic nature of manganate ion $MnO_4^{2-}$ is-

Indicate the steps in the preparation of:$(i)$ $K_2Cr_2O_7$ from chromite ore.$(ii)$ $KMnO_4$ from pyrolusite ore.

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Correct statement for $CeO_2$ is/are:
$1$. It is diamagnetic in nature.
$2$. It is a good oxidising agent.
$3$. It is a colourless compound.

Indicate the steps in the preparation of:
$(i)$ $K_2Cr_2O_7$ from chromite ore.
$(ii)$ $KMnO_4$ from pyrolusite ore.