Chemistry MCQs
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Question 442hard
In chemical terms, what are alums used for purifying water for drinking purposes ?
Question 443hard
Brown stains in vessels and clothes indicate the presence of high quantities of ________ in water.
Question 444medium
If water smells bad, then that odour can be removed by adding
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Question 445medium
Surface water is a better source of drinking water because it is poor in
Question 446hard
Which one of the following acids is used in battery ?
Question 447easy
Which of the following is the strongest base in aqueous solution ?
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Question 448medium
Which of the following acids serves as an electrolyte in a lead storage battery?
Question 449easy
Which is known as carbolic acid?
Question 450hard
Citric acid is present in free form in