List-I (Processes/Reactions) | List-II (Catalyst) | ||
|---|---|---|---|
| A | $2 SO _2( g )+ O _2( g ) \rightarrow 2 SO _3( g )$ | I | $Fe ( s )$ |
| B | $4 NH _3( g )+5 O _2( g ) \rightarrow$$4 NO ( g )+6 H _2 O ( g )$ | II | $Pt ( s )- Rh ( s )$ |
| C | $N _2( g )+3 H _2( g ) \rightarrow 2 NH _3( g )$ | III | $V _2 O _5$ |
| D | Vegetable oil $(l)+ H _2 \rightarrow$Vegetable ghee(s | IV | $Ni ( s )$ |
Choose the correct answer from the options given below:
From the given options the correct answer is option (B): (A) - (III), (B) - (II), (C) - (I), (D) - (IV)
A conducting bar moves on two conducting rails as shown in the figure. A constant magnetic field \( B \) exists into the page. The bar starts to move from the vertex at time \( t = 0 \) with a constant velocity. If the induced EMF is \( E \propto t^n \), then the value of \( n \) is _____. 
All reactants need to overcome certain energy, better known as activation energy in order to form products. This activation energy is the difference between the energy of the transition state and the reactant species.
Catalysis of chemical reactions is generally divided into two categories: