MCQ
An acidic buffer solution can be prepared by mixing the solution of
- ✓sodium acetate and acetic acid
- Bammonium chloride and ammonium hydroxide
- Csulphuric acid and sodium hydroxide
- Dsodium chloride and sodium hydroxide
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Cities
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Shimla
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Bengaluru
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Delhi
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Mumbai
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$p$ in $N/ m^2$
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$1.01 \times 10^5$
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$1.2 \times 10^5$
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$1.02 \times 10^5$
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$1.21 \times 10^5$ |
If $T _2> T _1$, the correct statement(s) is (are)
(Assume $\Delta H ^{\ominus}$ and $\Delta S ^{\ominus}$ are independent of temperature and ratio of $\ln K$ at $T _1$ to $\ln K$ at $T_2$ is greater than $T_2 / T_1$. Here $H, S, G$ and $K$ are enthalpy, entropy, Gibbs energy and equillibrium constant, respectively.)
$(A)$ $\Delta H ^{\ominus}<0, \Delta S ^{\ominus}<0$ $(B)$ $\Delta G ^{\ominus}<0, \Delta H ^{\ominus}>0$ $(C)$ $\Delta G ^{\ominus}<0, \Delta S ^{\ominus}<0$ $(D)$ $\Delta G ^{\ominus}<0, \Delta S ^{\ominus}>0$
(Relative atomic masses of $Ag$ and $Br$ are $108\, u$ and $80\, u$, respectively).