Q. Which of the following is not a Green House Gas ?
1) Carbon dioxide
2) Methane
3) Nitrogen
4) Nitrous oxide
Q. Which of the following is not used to make toothpaste?
1) Aluminum Oxide
2) Silica
3) Limestone
4) Galena
Q. Which of the following is not a raw material for the fertilizer industry?
1) Naphtha
2) Gypsum
3) Sulphur
4) Caustic soda
Q. Methyl orange indicator changes its colour at which pH value range ?
1) 3.1 - 4.4
2) 1.0 - 3.1
3) 4.4 - 5.8
4) 5.8 - 7.0
Q. Which of the following is not a greenhouse gas?
1) Water vapour
2) Nitrous oxide
3) Ozone
4) Carbon Monoxide
Q. An example of a solution of liquid in solid is -
1) Smoke
2) Foam
3) Jelly
4) Rubber
Q. Which one of the following gases released from bio-gas plant is used as a fuel gas ?
1) Butane
2) Propane
3) Methane
4) Ethane
Q. The toxic metal associated with the Minamata episode is -
1) Mercury
2) Arsenic
3) Lead
4) Cadmium
Q. Milkiness is observed on passing carbon dioxide through lime water is due to the formation of -
1) Calcium chloride
2) Calcium bicarbonate
3) Calcium carbonate
4) Calcium hydroxide
Q. Which of the following can not act like a bleaching agent?
1) Sulphur dioxide
2) Nitrous oxide
3) Chlorine
4) Hydrogen peroxide
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