How is sodium chromate converted into sodium dichromate in the manufacture of potassium dichromate from chromite ore?
By the action of concentrated sulphuric acid
By roasting with soda ash
By the action of lime stone
By the action of sodium hydroxide

Question

How is sodium chromate converted into sodium dichromate in the manufacture of potassium dichromate from chromite ore?
By the action of concentrated sulphuric acid
By roasting with soda ash
By the action of lime stone
By the action of sodium hydroxide

Toppr Admin · Accepted Answer

In the manufacture of potassium dichromate from chromite ore- sodium chromate is converted into sodium dichromate by -the action of concentrated sulphuric acid-2Na2CrO4-H2SO4-x2192-Na2Cr2O7-Na2SO4-H2O

How is sodium chromate converted into sodium dichromate in the manufacture of potassium dichromate from chromite ore?By the action of concentrated sulphuric acidBy roasting with soda ashBy the action of lime stoneBy the action of sodium hydroxide

In the manufacture of potassium dichromate from chromite ore, sodium chromate is converted into sodium dichromate by the action of concentrated sulphuric acid.2Na2CrO4+H2SO4→Na2Cr2O7+Na2SO4+H2O

How is sodium chromate converted into sodium dichromate in the manufacture of potassium dichromate from chromite ore?
By the action of concentrated sulphuric acid
By roasting with soda ash
By the action of lime stone
By the action of sodium hydroxide

In the manufacture of potassium dichromate from chromite ore, sodium chromate is converted into sodium dichromate by the action of concentrated sulphuric acid.
$2 N a_{2} C r O_{4} + H_{2} S O_{4} \to N a_{2} C r_{2} O_{7} + N a_{2} S O_{4} + H_{2} O$