Question:

Which one of the following oxides of nitrogen iscalled mixed anhydride ?

Updated On: Jul 7, 2022
  • NO
  • $NO_2$
  • $N_2O_4$
  • $N_2O_5$
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The Correct Option is B

Solution and Explanation

$ {2NO_2 + H_2O ->HNO_3 + HNO_2$ $ NO_2$ is called mixed anhydride because it gives a mixture of $HNO_2$ and $HNO_3$ upon dissolution in water.
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Concepts Used:

P-Block Elements

  • P block elements are those in which the last electron enters any of the three p-orbitals of their respective shells. Since a p-subshell has three degenerate p-orbitals each of which can accommodate two electrons, therefore in all there are six groups of p-block elements.
  • P block elements are shiny and usually a good conductor of electricity and heat as they have a tendency to lose an electron. You will find some amazing properties of elements in a P-block element like gallium. It’s a metal that can melt in the palm of your hand. Silicon is also one of the most important metalloids of the p-block group as it is an important component of glass.

P block elements consist of: