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Air contains maximum amount of

  • oxygen
  • nitrogen
  • hydrogen
  • carbon dioxide

Answer: Option B

Similar Questions :

1. Oxides of metals are alkaline.

  • TRUE
  • FALSE

Answer: Option A

2. Sugars are converted in the liver into

  • Glycogen
  • Vitamin
  • Monosaccharide
  • None of above

Answer: Option A

3. Identify the wrong statement in the following

  • Atomic radius of the elements increases as one moves down the first group of the periodic table
  • Atomic radius of the elements decreases as one moves across from left to right in the 2nd period of the
  • Amongst isoelectronic species, smaller the positive charge on the cation, smaller is the ionic radius
  • Amongst isoelectronic species, greater the negative charge on the anion, larger is the ionic radius

Answer: Option C

4. Which of the following gases is the most toxic?

  • Carbon dioxide
  • Sulphur dioxide
  • Carbon monoxide
  • Acetic acid

Answer: Option C

5. Which is also called Stranger Gas ?

  • Xenon
  • Neon
  • Argon
  • Nitrous oxide

Answer: Option A

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