Q. Which chemical law proposes that soft drinks and soda bottles are sealed under high pressure to increase the solubility of CO2?
1) Raoult's law
2) Henry's law
3) Ohm's law
4) Dalton's law
Q. Which one of the following can be categorised as a solution?
2) Sea Water
Q. Which of the following is/ are used of Biogas?
I. Fuel for cooking food
II. Used for lighting
III. As a fuel to run engines
IV. Used for generating electricity
Correct code is -
1) Only I
2) Only I and II
3) Only I, II and IV
4) I, II, III and IV all
Q. Calcium sulphate dihydrate is commonly known as -
Q. Which one of the following is the major constituent of biogas?
1) Carbon dioxide
2) Nitrous oxide
Q. Which one of the following represents the correct order of electron releasing tendency of metals?
Q. A very large volume of hydrogen can be accommodated by making -
1) non-metallic hydrides
2) hydrogen peroxide
3) non-stoichiometric hydrides
4) alkali metal hydrides
Q. Which one of the following is termed as Dry ice?
1) Ice present in ice-cream
2) Solid water at Antarctica
3) Solid state of carbon dioxide
4) Solid water of ionosphere
Q. Which one of the following substances is not a mixture?
2) Sea water
Q. Soaps clean surfaces on the principle based on -
4) Surface tension
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