JEE Main 20208 JanuaryEvening Shift
- Exam
- JEE Main
- Year
- 2020
- Date
- 8 January
- Shift
- Evening Shift
- Subject
- Chemistry
- Chapter
- Ionic Equilibrium
JEE Main 2020 · 8 January · Evening Shift · Chemistry · Ionic Equilibrium
For the following Assertion and Reason, the correct option is:...
For the following Assertion and Reason, the correct option is:
Assertion: The of water increases with increase in temperature.
Reason: The dissociation of water into and is an exothermic reaction.
Assertion: The of water increases with increase in temperature.
Reason: The dissociation of water into and is an exothermic reaction.
Options
- ABoth assertion and reason are true, and the reason is the correct explanation for the assertion.
- BBoth assertion and reason are false.
- CBoth assertion and reason are true, but the reason is not the correct explanation for the assertion.
- DAssertion is not true, but reason is true.
Correct answer
B. Both assertion and reason are false.
Step-by-step solution
{\text{H}_{2}{\text{O}}_{( l )} ⇌ {\text{H}}_{( \text{aq} )}^{+} + {\text{OH}}_{( \text{aq} )}^{-}
For ionization of {\text{H}_{2} \text{O:}\Delta\text{H>O} ⇒ Endothermic on temperature increase reaction shifts forward
both \left[{\text{H}}^{\text{+}}\right] increase
pH & pOH decreases.
For ionization of {\text{H}_{2} \text{O:}\Delta\text{H>O} ⇒ Endothermic on temperature increase reaction shifts forward
both \left[{\text{H}}^{\text{+}}\right] increase
pH & pOH decreases.