Match Column-I with Column-II, Columns I and II represent complexes and magnetic moment (BM) respectively. 

Choose the correct answer from the options given below:

The correct option for the value of vapour pressure of a solution at 45 $°$C with benzene to octane in a molar ratio 3:2 is:

[At 45 $°$C vapour pressure of benzene is 280 mm Hg and that of octane is 420 mm Hg. Assume Ideal gas]

The reagent 'R' in the given sequence of a chemical reaction is : 

	List-I (Substrates of reactions)		List II (Name of reactions)
(a)		(i)	Hell-Volhard- Zelinsky reaction
(b)		(ii)	Gattermann- Koch reaction
(c)		(iii)	Haloform reaction
(d)		(iv)	Esterification

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The molar conductivity of 0.007 M acetic acid is 20 S cm² mol^–1. The dissociation constant of acetic acid is :

(\(\mathrm{\Lambda_{H^{+}}^{o} \ = \ 350 \ S \ cm^{2} \ mol^{-1} }\))
(\(\mathrm{\mathrm{\Lambda_{CH_{3}COO^{-}}^{o} \ = \ 50 \ S \ cm^{2} \ mol^{-1} }}\))

1. $1.75\times {10}^{-5}$ mol L^–1 

2. $2.50\times {10}^{-5}$ mol L^–1 

3. $1.75\times {10}^{-4}$ mol L^–1 

4. $2.50\times {10}^{-4}$ mol L^–1 

The correct option for the total pressure (in atm) in a mixture of 4 g O₂ and 2 g H₂ confined in a total volume of one liter at 0$°$C is :
[Given R=0.082 L atm mol^-1 K^-1, T=273 K]

1. 25.18

2. 26.02

3. 2.518

3. 2.602

The slope of Arrhenius Plot (ln k v/s $\frac{1}{\mathrm{T}}$) of the first-order reaction is $-5\times {10}^3$ $\mathrm{K}$. The value of E_a of the reaction is:

[Given R = 8.314 JK^–1 mol^–1]

The product formed in the following chemical reaction is:

1.
2.
3.
4.

Match List-1 with List-II

List-I	List-II
(a). $2{\mathrm{SO}}_2\left(\mathrm{g}\right)+{\mathrm{O}}_2\left(\mathrm{g}\right)\to 2{\mathrm{SO}}_3\left(\mathrm{g}\right)$	(i). Acid rain
(b).  $$	(ii). Smog
(c). ${\mathrm{CaCO}}_3+{\mathrm{H}}_2{\mathrm{SO}}_4\to$ ${\mathrm{CaSO}}_4+{\mathrm{H}}_2\mathrm{O}+{\mathrm{CO}}_2$	(iii). Ozone depletion
(d). ${\mathrm{NO}}_2\left(\mathrm{g}\right)\stackrel{\mathrm{hv}}{\to }\mathrm{NO}\left(\mathrm{g}\right)+\mathrm{O}\left(\mathrm{g}\right)$	(iv). Tropospheric pollution

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The intermediate compound 'X' in the following chemical reaction is :

1.		2.
3.		4.