| Column A | Column B |
| 1. $- SO _3 H$ | (a) Prefix sulpho |
| 2. Mixed ether | (b) Chain isomerism |
| 3. All $2^{\circ}$ carbon | (c) $CH _3- O - C _2 H _5$ |
| 4. n -butane and isobutane | (d) Benzene |
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| Column A | Column B |
| (1) Bond order-2 | (a) $O _2^{-2}$ |
| (2) $O _2^{+}> O _2$ | (b) $XeF _2$ |
| (3) Peroxide ion | (c) $C _2$ |
| (4) 3 1.p at central atom | (d) Stability |
| Column A | Column B |
| 1. Thermal decomposition of propane. | (a) Polymer of vinyl chloride |
| 2. $CH _3 CH = CH _2+ HBr \xrightarrow{\text { Peroxide }}$ | (b) Propan-2-ol |
| 3. $\begin{array}{l} CH _3- CH = CH _2+ H _2 O \xrightarrow{ H ^{+}}\end{array}$ | (c) Propene + ethene |
| 4. PVC | (d) $CH _3- CH _2- CH _2- Br$ |
| Column A | Column B |
| 1. Oxidation number of S in $H _2 SO _5$. | (a) Always integer |
| 2. Bleaching powder | (b) Equivalent weight $=$ Molecular weight |
| 3. In $FeSO _4 \cdot 7 H _2 O$ | (c) $CaOCl _2$ |
| 4. Valency | (d) $+6$ |
| Column A | Column B |
| (1) Hydrolysis of $BCl _3$ | (a) Most acidic oxide |
| (2) $Cl _2 O _7$ | (b) Be and Al |
| (3) Diagonal relationship | (c) $H _3 BO _3$ |
| (4) Outermost electronic configuration of s-block | (d) $ns ^1$ and $ns ^2$ |
| 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. 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) 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) 1 calorie | (a) $KCO _2$ |
| (2) Average atomic mass of chlorine | (b) 4.184 joule |
| (3) Mole x Molecular mass | (c) 35.5 |
| (4) Empirical formula of potassium oxalate | (d) amount in gm |
| Column A | Column B |
| (1) $s p^3$ hybridisation | (a) $CO _2$ |
| (2) Linear geometry | (b) $H _2 O$ |
| (3) Bond angle $104.5^{\circ}$ | (c) $CCl _4$ |
| (4) One l.p at central atom | (d) $NH _3$ |
| Column A | Column B |
| (1) Positive rays or canal rays | (a) n = A-Z |
| (2) Discovery of neutron | (b) isotones |
| (3) ${ }_{14}^{30} Si$ and ${ }_{15}^{31} P$ | (c) Chadwick |
| (4) Number of neutrons | (d) Proton |