| Column A | Column B |
| (1) High boiling point of $H _2 O$ | (a) Paramagnetic |
| (2) $B _2$ molecule | (b) Decreasing order of bond order |
| (3) HCI < HBr < HI < HF | (c) Intramolecular H -bond |
| (4) $H _2 O > H _2 S> H _2 Se >$ $H _2 Te$ | (d) Increasing order of boiling point |
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| 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) Solution of $CuSO _4$ | (a) 14 |
| (2) $SnS _2$ | (b) $pH <7$ |
| (3) Relationship of $K _{ p }$ and $K _{ c }$ | (c) $K_{s p}=4 s^3$ |
| (4) $pK _{ a }+ pK _{ b }$ | (d) $K _{ p }= K _{ c }( RT )^{\Delta n}$ |
| Column A | Column B |
| (1) Amphoprotic solvent | (a) $CO _3^{2-}$ |
| (2) Conjugate base of $HCO _3^{-}$ | (b) $BF _3$ |
| (3) $CH _3 COOH$ | (c) $NH _3$ |
| (4) Lewis acid | (d) A weak base |
| 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) $pK _{ a } \pm 1$ |
| Column A | Column B |
| (1) $\left[ H ^{+}\right]=\left[ OH ^{-}\right]$ | (a) Neutral solution |
| (2) POH > PH | (b) N=2x M |
| (3) 1 M HCI solution | (c) Acidic solution |
| (4) For $H _2 SO _4$ | (d) pH = 0 |
| Column A | Column B |
| (1) Solution of $CH _3 COONH _4$ | (a) Salt formed by weak acid and weak base |
| (2) $NH _4 Cl$ | (b) $pH =7$ |
| (3) $NH _4 OH + NH _4 Cl$ | (c) $Kh =\frac{ K _{ w }}{ K _{ b }}$ |
| (4) $\left( NH _4\right)_2 CO _3$ | (d) Basic buffer |
| 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) Maximum number of electrons in any orbital | (a) Hertz (Hz) |
| (2) Unit of frequency | $\begin{array}{l}\text { (b) } 2.188 \times 10^8 Z / n \\ cm sec ^{-1}\end{array}$ |
| (3) Velocity of electron in Bohr's orbital | (c) $[ Ar ] 3 d^{10} 4 s^1$ |
| (4) Electronic confi- guration of Cu | (d) 2 (2$l$ + 1) |
| 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. CNG | (a) $C _6$ to $C _8$ |
| 2. Petrol | (b) Liquid natural gas |
| 3. LPG | (c) Liquid natural gas |
| 4. Aromatisation | (d) Propane and butane |