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Argon
Chlorine
Helium
Zenon
Which of the following gases is present under pressure in soft drinks?
Which of the following gases is used in cigarette lighters?
Which of the following group is NOT Dobereiner Triads?
Which of the following has the longest wave length?
Which of the following has the lowest melting point?
Which of the following in automobile exhaust can cause cancer?
Which of the following is a characteristic of all minerals?
Which of the following is a compound?
Which of the following is a man-made source of air pollution ?
Which of the following is a monoatomic gas?