MCQ
Chlorine gas is dried over
- A$CaO$
- B$NaOH$
- C$KOH$
- ✓Conc. ${H_2}S{O_4}$
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| Column $I$ | Column $II$ |
| $(A)$ Orbital angular momentum of the electron in a hydrogen-like atomic orbital | $(p)$ Principal quantum number |
| $(B)$ A hydrogen-like one-electron wave function obeying Pauli principle | $(q)$ Azimuthal quantum number |
| $(C)$ Shape, size and orientation of hydrogen-like atomic orbitals | $(r)$ Magnetic quantum number |
| $(D)$ Probability density of electron at the nucleus in hydrogen-like atom | $(s)$ Electron spin quantum number |
Given: $\Delta H ^0=-54.07\,kJ\,mol ^{-1}$
$\Delta S ^{\circ}=10\,JK ^{-1}\,mol ^{-1}$
(Take $2.303 \times 8.314 \times 298=5705$ )
$Pt$ $\mid H _{2}$ $(g,1 \,bar)$ $\left| H ^{+}( aq ) \| Cu ^{2+}( aq )\right| Cu ( s )$
is $0.31\, V$. The $pH$ of the acidic solution is found to be $3 ,$ whereas the concentration of $Cu ^{2+}$ is $10^{- x } \,M$. The value of $x$ is $.....$
(Given: $E _{ Cu ^{2+} / Cu }^{\ominus}=0.34 \,V$ and $\frac{2.303 RT }{ F }=0.06\, V$ )