Identify the correct standard |ThermochemistryJEEMAIN2023

JEE MAIN 2023

13-4-23 S2

Question

Identify the correct order of standard enthalpy of formation of sodium halides.

Select the correct option:

$\mathrm{NaI}<\mathrm{NaBr}<\mathrm{NaCl}<\mathrm{NaF}$

$\mathrm{NaF}<\mathrm{NaCl}<\mathrm{NaBr}<\mathrm{NaI}$ (C)

$\mathrm{NaCl}<\mathrm{NaF}<\mathrm{NaBr}<\mathrm{Nal}$ (D)

$\mathrm{Nal}<\mathrm{NaBr}<\mathrm{NaF}<\mathrm{NaCl}$

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution

Sol. For a given metal $\Delta_{\mathrm{f}} \mathrm{H}^0$ always becomes less negative from fluoride to iodide

Question Tags

JEE Main

Physics

Easy

Start Preparing for JEE with Competishun