Objective General Knowledge

Q. Which of the following is widely used as an anaesthetic?
1 methane
2 ammonia
3 chlorine
4 chloroform
Ans: 4

Q. Which of the following is not a compound of calcium?
1 gypsum
2 marble
3 chalk
4 silicon
Ans: 2

Q. Which of the following is not a chemical action?
1 burning of coal
2 conversation of water into steam
3 digestion of food
4 burning of paper
Ans: 2

Q. Which of the following is incorrect?
1 Mercury: Hg
2 Silver: Ag
3 Sodium: Na
4 Potassium: Ka
Ans: 4

Q. Which of the following is a protein ?
1 rayon
2 terry cotton
3 natural silk
4 nylon
Ans: 3

Q. Which of the following is a preservative for fruit juices?
1 CHsCOONa
2 HCOONa
3 CoHsCOONa
4 C2H5ONa
Ans: 3

Q. Which of the following is a non-ferrous metal?
1 cobalt
2 aluminium
3 nickel
4 iron
Ans: 2

Q. Which of the following is a mixture?
1 gunpowder
2 iron sulphate
3 brass
4 dry ice
Ans: 1

Q. Which of the following is a fertilizer?
1 Sodium nitrate
2 Sodium carbonate
3 Sodium peroxide
4 Sodium thiosulphate
Ans: 1

Q. Which of the following is a chemical change?
1 evaporation of water
2 burning of candle
3 glowing of an electric bulb
4 liquefaction of air
Ans: 2