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Wood or cattle dung ash is used for cleaning cooking utensils in many parts of India. The statement that is not true for this ash is :A. it largely consists of metal oxides and silicates because non-metals during burning of the wood/dung cakesB. when added to water, it forms alkaline solution with `pH ~ 8` and above, which helps to remove oily substances from the untensilsC. several chemical components of ash remain undissolved as solids in water and these solids help in cleaning by providing scrubbing actionD. if left moist for a few hours in air, it slowly turns acidic because of oxidative decomposition |
| Answer» Correct Answer - D | |