JEE Main Chemistry question

Not in JEE Main or NEET syllabus

The ashes of plants contain alkali metals, 90% of which is:

(A)Li
(B)KCorrect
(C)Na
(D)Rb

Answer: (B)

Solution

Plant ash ("potash") is predominantly composed of potassium compounds, since potassium is actively taken up and concentrated by plants as an essential nutrient, making up about

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Question ID VK-137795