| Column A | Column B |
| 1. Strongest reductant metal | (a) $HgCl _2$ |
| 2. Metal which react with dilute acid | (b) Lithium (Li) |
| 3. Elements which shows only negative oxidation state | (c) Mg |
| 4. Mercury (II) chloride | (d) Fluorine |
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| 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. Hyperconjugation | (a) Elimination reaction |
| 2. $CH _4 \rightarrow CH _3 Cl$ | (b) $\sigma$ bond resonance |
3.  | (c) Electrophilic addition reaction |
| 4. $CH _2= CH _2+ HBr$ | (d) Substitution reaction |
| Column A | Column B |
| (1) Isochoric process | (a) zero |
| (2) First law of thermodynamics | (b) $d V=0$ |
| (3) Density | (c) $\Delta U = q + w$ |
| (4) Enthalpy of formation of any element in transition state | (d) intensive property |
| Column A | Column B |
| (1) Unit of dipole moment | (a) F-F < CI-CI |
| (2) Liquid compound | (b) $H _2 O$ |
| (3) Bond shape | (c) HF |
| (4) Bond enthalpy | (d) Debye (D) |
| 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) p-p axial overlapping | (a) Diamond |
| (2) One $\sigma$ and $1 \pi$ bond | (b) CI-CI |
| (3) Ethyne | (c) $O _2$ |
| (4) High melting point | (d) sp hybridisation |
| 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. Alkyne | (a) $CH _2= CH -$ |
| 2. Paddy alcohol | (b) $C _{ n } H _{2 n } O _2$ |
| 3. Vinyl | (c) $C _{ n } H _{2 n -2}$ |
| 4. Carboxylic acid | (d) $C _2 H _5 OH$ |
| Column A | Column B |
| (1) Shape of orbitals | (a) $-13.6 \times \frac{ Z ^2}{n^2} eV$ per atom |
| (2) First postulate of Bohr model | (b) Total values of 1 |
| (3) Energy of electrons in Bohr's orbital $\left( E _{ n }\right)$ | (c) Azimuthal quantum numbers |
| (4) Number of subshells in any shell | (d) $m V^2=\frac{ Ze ^2}{r}$ |
| Column A | Column B |
| 1. Biogenesis principle | (a) Aniline |
| 2. Tetravalent carbon | (b) Berzilius |
| 3. Aromatic heterocyclic compound | (c) Pyridine |
| 4. Benzanoid aromatic compound | (d) Kekule |