Question
| Column A | Column B |
| (1) Eka-aluminium | (a) Cs (Caesium) |
| (2) Maximum metallic property table | (b) Ionic property |
| (3) Penetrating power of orbitals | (c) Ga (Gallium) |
| (4) $NaCl > MgCl _2$ | (d) More ionisation enthalpy |
| Column A | Column B |
| (1) Eka-aluminium | (a) Cs (Caesium) |
| (2) Maximum metallic property table | (b) Ionic property |
| (3) Penetrating power of orbitals | (c) Ga (Gallium) |
| (4) $NaCl > MgCl _2$ | (d) More ionisation enthalpy |
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
| 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) Planck's quantum theory | (a) dipositive charge |
| (2) Value of $l$ for 3d | (b) E = hv |
| (3) Numbers of unpaired electron in $Fe ^{+2}$ | (c) 2 |
| (4) Charge on a particle | (d) 4 |
| 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) 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) Significant figures in 0.0026 | (a) $40 \times 10^2 pm$ |
| (2) 8 gm NaOH per liter | (b) 2 |
| (3) 40 Å | (c) 0.2 M |
| (4) Number of electrons in ethane | (d) 18 |
| Column A | Column B |
| (1) Enthalpy of solution | (a) irreversible process |
| (2) Volume | (b) decrease in entropy |
| (3) Spontaneous process | (c) hydration enthalpy/ salvation enthalpy |
| (4) Crystallisation of sugar from solution | (d) Extensive property |
| Column A | Column B |
| (1) $s p^2$ hybridisation | (a) $BeCl _2$ |
| (2) $s p^3$ hybridisation | (b) $\stackrel{\oplus}{ C } H _3$ |
| (3) $Rb _2 O$ | (c) $\stackrel{+}{ N } H _4$ |
| (4) 50/s-character compound | (d) Oxide having more basic property |
| 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. 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. 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) $+6$ |