Q. Soda water contains ?
? Carbon dioxide
Q. The most important ore of aluminum is ?
? Bauxite
Q. Most soluble in water is ?
? Sugar
Q. Which of the following is in liquid form at room temperature ?
? Francium
Q. Sodium metal is kept under ?
? Kerosene
Q. Which of the following are the ingredients of gun metal ?
? Copper, Tin
Q. What is laughing gas ?
? Nitrous Oxide
Q. The filament of an electric bulb is made of ?
? Tungsten
Q. Diamond is an allotropic form of ?
? Carbon
Q. In fireworks, the green flame is produced because of ?
? Barium
Darun
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Good question