Match List-I with List-II List-I
| List-I | List-I i |
| Reaction | Catalyst |
| \(4 NH _3( g )+5 O _2( g ) \rightarrow 4 NO ( g )+6 H _2 O ( g )\) | NO(g) |
| \(N _2( g )+3 H _2( g ) \rightarrow 2 NH _3( g )\) | H_2SO_4(l) |
| \(C _{12} H _{22} O _{11}( aq ) H _2 O (l) \rightarrow \text { (Glucose) }+ C _6 H _{12} O _6 C _6 H _{12} O _6\) | Pt(s) |
| \( SO _2( g )+ O _2( g ) \rightarrow 2 SO _3( g )\) | Fe(s) |
Choose the correct answer from the options given below:
Method used for separation of mixture of products (B and C) obtained in the following reaction is: 
Which one of the following graphs accurately represents the plot of partial pressure of CS₂ vs its mole fraction in a mixture of acetone and CS₂ at constant temperature?

In the given figure, the blocks $A$, $B$ and $C$ weigh $4\,\text{kg}$, $6\,\text{kg}$ and $8\,\text{kg}$ respectively. The coefficient of sliding friction between any two surfaces is $0.5$. The force $\vec{F}$ required to slide the block $C$ with constant speed is ___ N.
(Given: $g = 10\,\text{m s}^{-2}$) 