Question
| Column A | Column B |
| (1) Zero energy of electron | (a) 2s, 2p. |
| (2) Orbitals in second shell | (b) 4 |
| (3) Maximum number of electrons in dorbital | (c) at infinite |
| (4) Number of lobes in d-orbital | (d) 10 |
| Column A | Column B |
| (1) Zero energy of electron | (a) 2s, 2p. |
| (2) Orbitals in second shell | (b) 4 |
| (3) Maximum number of electrons in dorbital | (c) at infinite |
| (4) Number of lobes in d-orbital | (d) 10 |
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| Column A | Column B |
| 1. Mustard gas | (a) $180^{\circ}$ |
| 2. PAN | (b) $HC \equiv CH$ |
| 3. $H - C - C$ bond angle in ethyne | (c) Polymer of vinyl cyanide |
| 4. Dehydrohalogenation $\text { in } CH_3 CHBr_2$ | (d) War gas |
| Column A | Column B |
| (1) $CO _2$ | (a) $pH >7$ |
| (2) Pyridine | (b) Lewis acid |
| (3) Molar concentration of water | (c) 55.5 M |
| (4) Basic solution | (d) Lewis base |
| 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) Standard state of substance | (a) $\Delta G =\Delta H - T \Delta S$ |
| (2) Entropy of sublimation | (b) 1 atm pressure and 298 K temperature |
| (3) Gibbs equation | (c) non-crystalline |
| (4) Glass | (d) $\Delta S _{\text {sub }}=\frac{\Delta H _{\text {(sub) }}}{ T }$ |
| 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) 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 |
| Column A | Column B |
| (1) Gram molecular mass | (a) Volume of gas at NTP |
| (2) Mole x 22.4 | (b) 6.4 |
| (3) Atomic mass x specific heat | (c) 100 |
| (4) Molar mass of $CaCO _3$ | (d) mass of one mole molecules |
| 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 |
| Column A | Column B |
| (1) Potassium (K) | (a) Elements after ${ }_{92} U$ |
| (2) Chalcogen | (b) Elements of IV period |
| (3) s-block elements | (c) He |
| (4) Peruranium elements | (d) Halogen |