Waste plastics accumulate in the soil and pollute the environment because plastic materials are
Waste plastics accumulate in the soil and pollute the environment because plastic materials are A. insoluble in water…
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If the relative molecular mass of an element is not a whole number, it can…
If the relative molecular mass of an element is not a whole number, it can be deduced that…
Acidic industrial waste can be treated with
Acidic industrial waste can be treated with A. lime B. brine C. water D. enthanol Correct Answer: Option…
Which of the following reactions represents the change that occurs when a photographic film is…
Which of the following reactions represents the change that occurs when a photographic film is exposed to sunlight?…
If 10 cm 3 of distilled water is added to 10 cm3 of an aqueous…
If 10 cm 3 of distilled water is added to 10 cm3 of an aqueous salt solution, the…
One of the products of combustion of pentane in excess air is
One of the products of combustion of pentane in excess air is A. pentanol B. pentene C. nitrogen…
Which of the following polymers contains nitrogen?
Which of the following polymers contains nitrogen? A. Nylon B. Polyvinyl chloride C. Polyethene D. Cellulose Correct Answer:…
What is the function of H2SO4 in the following reaction? C12 H22O11 conc. H2
What is the function of H2SO4 in the following reaction? C12 H22O11 conc. H2SO4 12C + 11H2O A.…
Sugars can be hydrolyzed at room temperature by the action of
Sugars can be hydrolyzed at room temperature by the action of A. mineral acids B. strong bases C.…
Which of the following constitutes an advantage in the use of hard water?
Which of the following constitutes an advantage in the use of hard water? A. Formation of scum with…