Glycol is used to manufacture which of the following ?
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Magnetite is an ore/mineral of
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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