| Column $I$ | Column $II$ |
| $A$. $CO_{2(s)} \rightarrow CO_{2(g)}$ | $p$. phase transition |
| $B$. $CaCO_{3(s)} \rightarrow CaO_{(s)} + CO_{2(g)}$ | $q$. allotropic change |
| $C$. $2H_{(g)} \rightarrow H_{2(g)}$ | $r$. $\Delta H$ is positive |
| $D$. $P_{(\text{white, solid})} \rightarrow P_{(\text{red, solid})}$ | $s$. $\Delta S$ is positive |
| $t$. $\Delta S$ is negative |
Explore More
Vedclass Products
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialGenerate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeLive online exams with unlimited students, 360° analytics & white-label branding.
See Demo