Which of the following statements is correct | vedclass

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(A) $1$. $PH_3$ (phosphine) is a much weaker Lewis base than $NH_3$ (ammonia) because the lone pair on $P$ is in a larger $3sp^3$ orbital,making it le

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It is less basic than $NH_3$.

Vedclass · Answer

(A) $1$. $PH_3$ (phosphine) is a much weaker Lewis base than $NH_3$ (ammonia) because the lone pair on $P$ is in a larger $3sp^3$ orbital,making it less available for donation compared to the $2sp^3$ orbital of $N$ in $NH_3$.$2$. $NH_3$ is more basic than $PH_3$.$3$. $PH_3$ is highly toxic,whereas $NH_3$ is less toxic.$4$. The electronegativity of $N$ $(3.04)$ is higher than $P$ $(2.19)$.$5$. Therefore,the correct statement is that $PH_3$ is less basic than $NH_3$.

Which of the following statements is correct for $PH_3$?

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