Magnetite is an ore/mineral of
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Atomic number of which of the following elements is greater than that of Magnesium
Which one of the following is commonly used for pulp bleaching in the paper industry?
Oxygen molecule is ______.
The pH of a solutiion is 3. When its pH changes to 6, then H+ ion concentration
Which of the following gases is heavier than oxygen?
The depletion in Ozone layer is caused by ___________ .
Which is known as carbolic acid?
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