| 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) $H _2(g)+ I _2(g) \rightleftharpoons 2 HI ( g )$ | (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. On Ag electrode, the electrolysis of aqueous solution of $AgNO _3$ | (a) $K _2 Cr _2 O _7$ |
| 2. $Cr < Mg < K$ | (b) $CHCl _3$ |
| 3. Different mathmetical value of valency and oxidation number of carbon | (c) Reducing capacity |
| 4. Oxidizing property | (d) On cathode Ag and on anode $Ag ^{+}$ |
| 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 |
| 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 |
| Column A | Column B |
| 1. Bayer's reagent | (a) $C _{12}$ to $C _{16}$ |
| 2. Ozonolysis of but-2-ene | (b) $CH _3- CH _2- CHO$ |
| 3. Hydroformylation of ethene | (c) Test for unsaturation |
| 4. Kerosene oil | (d) $CH _3 CHO$ |
| 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) 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) Octahedral geometry | (a) $B _2$ molecule |
| (2) Unidentified molecule | (b) $O _2$ molecule |
| (3) Bond order-one | (c) $SF _6$ |
| (4) Paramagnetic | (d) $He _2$ |
| 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) 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) $m V^2=\frac{ Ze ^2}{r}$ |