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JEE Main Chemistry question

ChemistrySolutionsJEE Main

What volume of 6 M HCl should be added to 2 M HCl to get 1 L of 3 M HCl?

Answer: (A)

Solution

Let L of 6 M HCl be mixed with L of 2 M HCl to give 1 L of 3 M HCl: $6x+2(1-x)=3×1

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Question ID VK-130600