Question:
When a mixture of NaCl and KCl is heated with cone. $H_2SO_4$ and $K_2Cr_2O_7$. The red gas obtained is
When a mixture of NaCl and KCl is heated with cone. $H_2SO_4$ and $K_2Cr_2O_7$. The red gas obtained is
Updated On: Jul 7, 2022
- Chromic chloride
- Chromyl chloride
- Chromium (III) sulphate
- Chromic anhydride
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The Correct Option is B
Solution and Explanation
$ {4NaCl + K_2Cr_2O_7 + 6H_2SO_4 -> 4NaHSO_4 + 2KHSO_4 + 3H_2O + $\underset{\mathrm{Chromyl}}{ {2CrO_2Cl_2}}$}$
chloride gas
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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:
- Group 13 Elements: Boron family
- Group 14 Elements: Carbon family
- Group 15 Elements: Nitrogen family
- Group 16 Elements: Oxygen family
- Group 17 Elements: Fluorine family
- Group 18 Elements: Neon family