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Question: Answered & Verified by Expert
Yellow coloured aqueous solution of sodium chromate changes to orange when acidified with sulphuric acid because
Chemistryd and f Block ElementsNEET
Options:
  • A H+ ions convert chromate ions to dichromate ions
  • B H+ ions react with sodium chromate to give sodium ions which turn solution orange
  • C Cr3+ ions are liberated in the solution which turn the solution orange
  • D sodium hydroxide is formed during the reaction which imparts orange to the solution
Solution:
1432 Upvotes Verified Answer
The correct answer is: H+ ions convert chromate ions to dichromate ions
2Na 2 CrO 4 Yellow coloured solution  +  2H + → Na 2 Cr 2 O 7 Orange coloured solution  +  2Na +  +  H 2 O

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