| Column A | Column B |
| 1.$CH _3 CH _2 OH$ and $CH _3 OCH _3$ | (a) Negative carbon $sp ^3$ hybridization |
2.  | (b) $- NO ^2$ group |
| 3. $: \overline{ C } H _3$ | (c) Functional group isomerism |
| 4. $-I$ effect | (d) Metamerism |
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| Column A | Column B |
| (1) Zero energy of electron | (a) 2s, 2p. |
| (2) Orbitals in second shell | (b) 4 |
| (3) Maximum number of electrons in dorbital | (c) at infinite |
| (4) Number of lobes in d-orbital | (d) 10 |
| Column A | Column B |
| (1) Neutralization energy of HCl + NaOH | (a) Heat exchange due to difference in temperature |
| (2) Formation of mixture of gases | (b) 57.32 kJ |
| (3)$\Delta G$ > 0 | (c) increase in entropy |
| (4) Heat | (d) non-spontaneous process |
| Column A | Column B |
| (1) $H _2(g)+ I _2(g) \rightleftharpoons 2 HI ( g )$ | (a) $H _3 O ^{\oplus}$ |
| (2) $\begin{array}{l} PCl _5(g) \rightleftharpoons PCl _3(g)+ \\ Cl _2(g)\end{array}$ | (b) $K _{ p }= K _{ c }$ |
| (3) $CaCO _3(s) \rightleftharpoons CaO ( s )+$ $CO _2(g)$ | (c) Unit of $K _{ c }=$ $\left(\right.$ concentration) ${ }^1$ |
| (4) Conjugate acid of $H _2 O$ | (d) Heterogeneous equilibrium |
| Column A | Column B |
| (1) Orientation of orbital | (a) Spin quantum numbers |
| (2) Electronic confi- guration of Pd | (b) Magnetic quantum numbers |
| (3) Heisenberg's uncer- tainty principle | (c) $[ Kr ] 4 d^{10} 5 s^0$ |
| (4) Quantum numbers which do not depend on other quantum numbers | (d) $\Delta x \times \Delta P =\frac{h}{4 \pi}$ |
| Column A | Column B |
| (1) $SH ^{+4}< Sn ^{+2}$ | (a) Fluorine |
| (2) Maximum ionisation enthalpy in periods | (b) lonic radii |
| (3) Electron gain enthalpy | (c) Noble gases |
| (4) Element having maximum electro- negativity | (d) Negative |
| Column A | Column B |
| (1) Acidity | (a) Velocity per second |
| (2) Acceleration | (b) Heterogenous mixture |
| (3) Mixture of iron filling and sulphur powder | (c) Chemical properties |
| (4) Diamond | (d) Elements |
| Column A | Column B |
| (1) Enthalpy of solution | (a) irreversible process |
| (2) Volume | (b) decrease in entropy |
| (3) Spontaneous process | (c) hydration enthalpy/ salvation enthalpy |
| (4) Crystallisation of sugar from solution | (d) Extensive property |
| Column A | Column B |
| (1) Li, Na, K | (a) 7 |
| (2) Number of periods in periodic table | (b) Elements of group 18 |
| (3) Noble gases | (c) ununseptium |
| (4) Atomic mass 117 | (d) Dobereiner's triad |
| Column A | Column B |
| (1) Deci | (a) atomic mass |
| (2) Equivalent weight of atom Valency | (b) weight-weight unit |
| (3) $6.022 \times 10^{22}$ carbon atom | (c) 1/10 |
| (4) Molality | (d) 1.2 gm carbon |
| Column A | Column B |
| (1) $CH _3 COOK$ | (a) $h=\sqrt{ Kh }$ |
| (2) $CH _3 COONH _4$ | (b) $K _{s p}=s^2$ |
| (3) pH range of acidic buffer | (c) $Kh =\frac{ K _{ w }}{ K _{ a }}$ |
| (4) For $BaSO _4$ | (d) $pK _{ a } \pm 1$ |