The correct order of increasing thermal stability of the given compounds is I. HF II. HBr III. HCl IV. HI

Question

The correct order of increasing thermal stability of the given compounds is I. HF II. HBr III. HCl IV. HI (A) I < II < III < IV (B) IV < II < III < I (C) IV < II < I < III (D) II < IV < I < III

Tardigrade Admin · Accepted Answer

Stability depends on bond strength Bond strength depends on bond length. Bond length depends on the size of halides. Bigger bond length easily cleavage of H

- X

bond and thus, the correct order is

HF > HCl > HBr > HI

IV < II < III < I

Q. The correct order of increasing thermal stability of the given compounds is
I. HF
II. HBr
III. HCl
IV. HI

$I < II < III < I V$

$I V < II < III < I$

$I V < II < I < III$

$II < I V < I < III$

Stability depends on bond strength Bond strength depends on bond length. Bond length depends on the size of halides. Bigger bond length easily cleavage of H $- X$ bond and thus, the correct order is $HF > HCl > HBr > HI$
$IV < II < III < I$

Q. The correct order of increasing thermal stability of the given compounds is I. HF II. HBr III. HCl IV. HI

I<II<III<IV

IV<II<III<I

IV<II<I<III

II<IV<I<III