| Column A | Column B |
| 1.Acidic property | (a)  |
| 2. Positive mesomeric effect | (b) Inductive effect |
| 3. Unstable effect | (c) Aniline |
| 4. Stable effect | (d) Electromeric effect |
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| 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) For isothermal reversible process | (a) calculation of combustion energy |
| (2) Entropy change at equilibrium | (b) $\begin{array}{l} W _{ rev }=-2303 nRT \\ \log \frac{ V _{ f }}{ V _{ i }}\end{array}$ |
| (3) Ideal process | (c) $\Delta S =0$ |
| (4) Bomb calorimeter | (d) reversible process |
| Column A | Column B |
| 1. Addition reaction | (a) $\begin{array}{c} Ca ( s )+2 H _2 O ( l ) \longrightarrow Ca ( OH )_2( aq )+ H _2(g)\end{array}$ |
| 2. Decomposition reaction | (b) $C ( s )+ O _2(g) \longrightarrow CO _2(g)$ |
| 3. Displacement reaction | (c) $\begin{array}{r}2 H _2 O (l) \longrightarrow 2 H _2(g)+ O _2(g)\end{array}$ |
| 4. Disproportionation reaction | (d) $\begin{aligned} 2 H _2 O _2( aq ) \longrightarrow & 2 H _2 O ( l ) & + O _2(g)\end{aligned}$ |
| Column A | Column B |
| (1) Molar mass of NaCl | (b) mass-volume unit |
| (2) Number of moles of water in 36 gm | (b) mass-volume unit |
| (3) Empirical formula of Benzene | (c) $58.5 gm mol ^{-1}$ |
| (4) Normality | (d) CH |
| Column A | Column B |
| (1) Energy mass equation of Einstein | (a) $KE =\frac{1}{2} m v^2$ |
| (2) Wavelength of Balmer series | (b) Linear spectrum |
| (3) Atomic spectrum | (c) $4000 Å-7000 Å$ |
| (4) Kinetic energy | (d) $E = mc ^2$ |
| Column A | Column B |
| 1.Nucleophilic | (a) Hydrogen |
| 2. Electrophilic | (b) $: \stackrel{\ominus}{ N } H _2$ |
| 3. Stability of carbanion | (c) Nitrogen ion |
| 4. Zero inductive effect | (d) $1^{\circ}>2^{\circ}>3^{\circ}$ |
| Column A | Column B |
| (1) Basicity of boric acid | (a) $\Delta H$ is positive |
| (2) Proton acceptor | (b) pH < 7 |
| (3) Endothermic reaction | (c) Bronsted-Lowry base |
| (4) Aqueous solution of NH4 CI | (d) 1 |
| 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) Wavenumber | (a) Principal quantum numbers |
| (2) Radius of Bohr shell | (b) $2 n^2$ |
| (3) Maximum number of electrons in any orbital | (c) $\frac{1}{\lambda}$ |
| (4) K, L, M, N, O | (d) $\frac{n^2}{Z} \times 0.529 Å$ |
| Column A | Column B |
| (1) ${ }^{\circ} C +273.15$ | (a) isotopes |
| (2) 0.55 ml | (b) Kelvin (K) |
| (3) ${ }_{17} Cl ^{35}$ and ${ }_{17} Cl ^{37}$ | (c) $3.33408 \times 10^2$ |
| (4) 333.408 | (d) two significant figures |