Assertion : Reducing nature of pnicogen hydri | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) As we move down the group $15$ (pnicogens),the atomic size of the central atom increases.This leads to an increase in the bond length $(B.L.)$ and

Vedclass · Accepted Answer

Both Assertion and Reason are true and Reason is the correct explanation of Assertion.

Vedclass · Answer

(D) As we move down the group $15$ (pnicogens),the atomic size of the central atom increases.This leads to an increase in the bond length $(B.L.)$ and a decrease in the bond strength $(B.S.)$ of the $E-H$ bond.Due to the decrease in bond strength,the thermal stability $(T.S.)$ of the hydrides decreases down the group.Because the $E-H$ bond becomes weaker,the tendency to release hydrogen increases,which makes the hydrides stronger reducing agents.Therefore,the reducing nature of pnicogen hydrides increases down the group because their thermal stability decreases.Both Assertion and Reason are true,and the Reason is the correct explanation of the Assertion.

Assertion $:$ Reducing nature of pnicogen hydrides increases on moving down the group.
Reason $:$ Thermal stability of pnicogen hydrides decreases on moving down the group.

Similar Questions

In which of the following is $NH_3$ $NOT$ used?

$NH_3 + O_2 \xrightarrow[\Delta ]{Pt} A + H_2O;$ $A + O_2 \to B;$ $B + O_2 + H_2O \to C$
$A, B$ and $C$ are

Which one of the following is formed (mainly) when red phosphorus is heated in a sealed tube at $803 \,\,K$?

$NH_3 + O_2 \xrightarrow[500 \ K]{Pt} W + H_2O$
$W + O_2 \rightleftharpoons X$
$X + H_2O \rightleftharpoons Y + W$
Which of the following statements is correct?

Which of the following oxides is neutral?

Vedclass Test Series

Exam Paper Generator

Online Exam Module

Assertion $:$ Reducing nature of pnicogen hydrides increases on moving down the group.Reason $:$ Thermal stability of pnicogen hydrides decreases on moving down the group.