Q. Which of the following is not used to make toothpaste?
1) Aluminum Oxide
Q. Which of the following is not a raw material for the fertilizer industry?
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
4) Carbon Monoxide
Q. An example of a solution of liquid in solid is -
Q. Which one of the following gases released from bio-gas plant is used as a fuel gas ?
Q. The toxic metal associated with the Minamata episode is -
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
4) Hydrogen peroxide
Q. In the Canada Deuterium Uranium (CANDU) reactor, a natural uranium - fuelled reactor, the function of moderator and coolant is performed by -
1) Heavy Water
2) Light Water
3) Carbon Dioxide
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