Moderate

Yellow colour of Nitiric Acid is due to the presence of:

Correct answer: A. NO2

  • A. NO2
  • B. NO
  • C. N2O
  • D. N2O4

Explanation

Nitric acid has a yellowish-brownish colour due to the presence of gaseous nitrogen oxides dissolved in it. The eminent nitrogen oxide which imparts yellow colour to the otherwise colourless solution of nitric acid is nitrogen dioxide

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About s-Block and p-Block Elements

The s and p blocks are studied through their valence-shell configurations, periodic trends and characteristic chemical properties. Work covers the reactions of Group I and Group II elements, the behaviour of Group IV elements, and how atomic size, ionization energy, electronegativity and metallic character change across periods and down groups.

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