Home
Class 12
CHEMISTRY
Sodium chromate, Na(2)CrO(4) is made com...

Sodium chromate, `Na_(2)CrO_(4)` is made commerically by :

A

heating mixture of `Cr_(2)O_(3) and Na_(2)CO_(3)`

B

heating mixture of chromate ore and sodium carbonate in the presence of oxygen

C

heating sodium dichromate with sodium carbonate

D

reacting NaOH with chromic acid

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • d-BLOCK ELEMENTS

    VK JAISWAL|Exercise Level 1|110 Videos

  • d-BLOCK ELEMENTS

    VK JAISWAL|Exercise Level 3|40 Videos

  • CO-ORDINATION COMPOUNDS

    VK JAISWAL|Exercise ASSERTION-REASON TYPE QUESTIONS|26 Videos

  • ENVIRONMENTAL CHEMISTRY

    VK JAISWAL|Exercise ASSERTION-REASON TYPE QUESTIONS|14 Videos

Similar Questions

Explore conceptually related problems

The solubility of solid silver chromate, Ag_(2)Cro_(4) , is determined in three solvents K_(sp) of Ag_(2)CrO_(4) = 9 xx 10^(-12) I. pure water II. 0.1M gNO_(3) III. 0.1M Na_(2)CrO_(4) Predict the relative solubility of Ag_(2)CrO_(4) in the three solvents.

Add potassium chromate (K_(2)CrO_(4)) into the solution of barium sulphate (BaSO_(4)) Write the name of the precipitate.

Add potassium chromate (K_(2)CrO_(4)) into the solution of barium sulphate (BaSO_(4)) . What was the colour of the precipitate formed ?

Potassium dichromate (K_(2)Cr_(2)O_(7)) is an orange coloured compound , very frequently used in laboratory as an oxidising agent as well as in a redox titration. It is generally prepared from chromite (FeCr_(2)O_(4)) ore according to the following reactions: (1) Fusion of chromite ore with sodium carbonate in excess of air. FeCr_(2)O_(4) + Na_(2)CO_(3) + O_(2) rarr Na_(2)CrO_(4)+Fe_(2)O_(3) +CO_(2) (2) Acidifing filtered sodium chromate solution with sulphuric acid. Na_(2)CrO_(4) + H_(2)SO_(4) rarr Na_(2)Cr_(2)O_(7) + Na_(2)SO_(4) + H_(2)O (3) Treating sodium dichormate with potassium choride . Na_(2)Cr_(2)O_(7) + KCl rarr K_(2)Cr_(2)O_(7) + NaCl If the number of moles of reactant available for reaction are : [FeCr_(2)O_(4)=0.25 "moles" , O_(2)=0.35 "moles", Na_(2)CO_(3)=0.60 "moles", H_(2)SO_(4)=0.2 "moles", KCl=0.4 "moles"] , then the maximum number of moles of K_(2)Cr_(2)O_(7) , that can be produced is :

Potassium dichromate (K_(2)Cr_(2)O_(7)) is an orange coloured compound , very frequently used in laboratory as an oxidising agent as well as in a redox titration. It is generally prepared from chromite (FeCr_(2)O_(4)) ore according to the following reactions: (1) Fusion of chromite ore with sodium carbonate in excess of air. FeCr_(2)O_(4) + Na_(2)CO_(3) + O_(2) rarr Na_(2)CrO_(4)+Fe_(2)O_(3) +CO_(2) (2) Acidifing filtered sodium chromate solution with sulphuric acid. Na_(2)CrO_(4) + H_(2)SO_(4) rarr Na_(2)Cr_(2)O_(7) + Na_(2)SO_(4) + H_(2)O (3) Treating sodium dichormate with potassium choride . Na_(2)Cr_(2)O_(7) + KCl rarr K_(2)Cr_(2)O_(7) + NaCl If you are initially provided with 224 gm of pure chromite ore and 169.6 gm of sodium carbonate , the minimum volume of air required at 1 atm and 273 K to consume at least one of the reactant completely, if air contains 20% by volume of oxygen gas is :

Add potassium chromate (K_(2)CrO_(4)) into the solution of barium sulphate (BaSO_(4)) Will you call this reaction a displacement reaction or a double displacement reaction?

Add potassium chromate (K_(2)CrO_(4)) into the solution of barium sulphate (BaSO_(4)) Write down the balanced equationfor this reaction.