Question:
Which of the following is the correct statement for $PH_3$ ?
Which of the following is the correct statement for $PH_3$ ?
Updated On: Jul 28, 2022
- It is less poisonous than $NH_3$
- It is less basic than $NH_3$
- Electronegativity of $PH_3 > NH_3$
- It does not show reducing properties
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The Correct Option is B
Solution and Explanation
Nitrogen is more electronegative than the phosphorus atom. In $NH _{3}$, nitrogen attracts the bonded pair of elctron between $N$ and $H$ atoms towards it, and this effect is more in $NH _{3}$ than in $PH _{3}$. Due to this effect, the lone pair of electrons in $NH _{3}$ can participate more than that of $PH _{3}$.
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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