The correct order of boiling points of hydrid | vedclass

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Question

(A) The boiling points of hydrides of group $15$ elements depend on the molecular mass and the presence of intermolecular forces. As we move down the

Vedclass · Accepted Answer

$PH_3 < AsH_3 < NH_3 < SbH_3 < BiH_3$

Vedclass · Answer

(A) The boiling points of hydrides of group $15$ elements depend on the molecular mass and the presence of intermolecular forces. As we move down the group,the molecular mass increases,which leads to an increase in the magnitude of van der Waals forces,causing the boiling point to increase. However,$NH_3$ possesses intermolecular hydrogen bonding due to the high electronegativity and small size of the nitrogen atom. This hydrogen bonding results in an anomalously high boiling point for $NH_3$ compared to $PH_3$ and $AsH_3$. The correct order is $PH_3 < AsH_3 < NH_3 < SbH_3 < BiH_3$.

$a$. Pure nitrogen	$i$. Chlorine
$b$. Haber process	$ii$. Sulphuric acid
$c$. Contact process	$iii$. Ammonia
$d$. Deacon's process	$iv$. Sodium azide or Barium azide

The correct order of boiling points of hydrides of $15^{th}$ group elements is

Similar Questions

Among the hydrides $NH_3, PH_3,$ and $BiH_3$, the hydride with the highest boiling point is $X$ and the hydride with the lowest boiling point is $Y$. What are $X$ and $Y$ respectively?

Which among the following oxides is acidic in nature?

Discuss the reactivity of group-$15$ elements with metals.

Match the following:

$a$. Pure nitrogen $i$. Chlorine

$b$. Haber process $ii$. Sulphuric acid

$c$. Contact process $iii$. Ammonia

$d$. Deacon's process $iv$. Sodium azide or Barium azide

Which of the following is the correct option?

Which of the following elements does not form stable diatomic molecules?

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