Question:
A translucent white waxy solid $(A)$ reacts with excess of chlorine to give a yellowish white powder $(B)$. $(B)$ reacts with organic compounds containing $-OH$ group converting them into chloro derivatives. $(B)$ on hydrolysis gives $(C)$ and is finally converted to phosphoric acid. $(A)$, $(B)$ and $(C)$ are
A translucent white waxy solid $(A)$ reacts with excess of chlorine to give a yellowish white powder $(B)$. $(B)$ reacts with organic compounds containing $-OH$ group converting them into chloro derivatives. $(B)$ on hydrolysis gives $(C)$ and is finally converted to phosphoric acid. $(A)$, $(B)$ and $(C)$ are
Updated On: Jul 6, 2022
- $P_4$, $PCl_3$, $H_3PO_4$
- $P_4$, $PCl_5$, $H_3PO_3$
- $P_4$, $PCl_5$, $POCl_3$
- $P_4$, $PCl_3$, $POCl_3$
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The Correct Option is C
Solution and Explanation
$\underset{\text{(A)}}{ {P4}} +$$ {10Cl_2 ->}$ $\underset{\text{(B)}}{ {4PCl5}}$
$ {PCl_5 +C2H5OH -> C2H5Cl +POCl3 +HCl}$
$ {PCl5 +H2O ->}$$\underset{\text{(C)}}{ {POCl3}}+ {2HCl}$
$ {POCl3 + 3H2O -> H3PO4 +3HCl}$
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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