Chemistry MCQs
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Question 262hard
The acid rain destroys vegetations because it contains
Question 263hard
Of the following, which one pollutes the air of a big city ?
Question 264medium
Of the following which one pollutes the air of a big city ?
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Question 265hard
Which of the following is usually not an air-pollutant?
Question 266hard
Which of the following pollutants is main product of automobile exhaust ?
Question 267medium
The smog is essentially caused by the presence of
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Question 268medium
The depletion in Ozone layer is caused by ________ .
Question 269hard
Which of the following is the maximum number of electrons that can be present in M-shell?
Question 270hard
Atoms of different elements have