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