Q. Soda water contains ?
? Carbon dioxide
Q. The most important ore of aluminum is ?
Q. Most soluble in water is ?
Q. Which of the following is in liquid form at room temperature ?
Q. Sodium metal is kept under ?
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 ?
Q. Diamond is an allotropic form of ?
Q. In fireworks, the green flame is produced because of ?