MCQ
The hydration enthalpies of alkali metal ions decrease with increase-in ionic size. Which of the following ions has maximum degree of hydration?
- A$Na^+$
- B$K^+$
- ✓$Li^+$
- D$Cs^+$
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Statement $I$ : Gallium is used in the manufacturing of thermometers.
Statement $II$ : A thermometer containing gallium is useful for measuring the freezing point ( $256 \mathrm{~K}$ ) of brine solution.
In the light of the above statement, choose the correct answer from the options given below :
$2A(g) \rightleftharpoons 2B(g) + C(g)$
at equilibrium $700\, mL$ gaseous mixture contains $100\, mL$ of gas $C$ at $10\, atm$ and $300\, K$. What is the value of $K_P$ for the reaction