Question
Explain catalytic selectivity with suitable examples.
✓
Answer
$ i.$ Some solid catalysts are selective in their action.
$ii.$ The same gaseous reactants produce different products when different catalysts are used.
e.g.
$a.$ The gaseous ethylene and $O_2$ react to produce different products with different catalysts.
$b.$ The gaseous carbon monoxide and $H_2$ produce different products by using different catalysts.
$1. \underset{\substack{\text { Carbon } \\ \text { monoxide }}}{ CO _{( g )}}+3 H _{2( g )} \xrightarrow{ Ni } \underset{\substack{\text { Methane }}}{ CH _{4( g )}}+ H _2 O _{( g )}$
$2. \underset{\substack{\text { Carbon } \\ \text { monoxide }}}{ CO _{( g )}}+\underset{\text { }}{2 H _{2( g )}} \xrightarrow[\text { Methanol }]{ Cu / ZnO - C _2 O _3} \underset{\longrightarrow}{ CH _3 OH _{( g )}}$
$ii.$ The same gaseous reactants produce different products when different catalysts are used.
e.g.
$a.$ The gaseous ethylene and $O_2$ react to produce different products with different catalysts.
$b.$ The gaseous carbon monoxide and $H_2$ produce different products by using different catalysts.
$1. \underset{\substack{\text { Carbon } \\ \text { monoxide }}}{ CO _{( g )}}+3 H _{2( g )} \xrightarrow{ Ni } \underset{\substack{\text { Methane }}}{ CH _{4( g )}}+ H _2 O _{( g )}$
$2. \underset{\substack{\text { Carbon } \\ \text { monoxide }}}{ CO _{( g )}}+\underset{\text { }}{2 H _{2( g )}} \xrightarrow[\text { Methanol }]{ Cu / ZnO - C _2 O _3} \underset{\longrightarrow}{ CH _3 OH _{( g )}}$
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Explain the structure of silicon dioxide.
What does the negative sign of electron energy convey?
Differentiate between oil in water and water in oil emulsions.
$^{41}$Ar decays initially at a rate of $575 Bq$. The rate falls to $358$ dps after $75$ minutes. What is the half-life of $ ^{41}$Ar?
→Show that carbon monoxide and carbon dioxide satisfy the law of multiple proportions.
Differentiate between $s-$block and $p-$block elements.
→Explain the trend in oxidation state of elements from nitrogen to bismuth.
Explain the resonance phenomenon with respect to benzene. ### Explain the resonance hybrid structure of benzene.
Explain working of Daniel cell.
What are the conditions required for linear combination of atomic orbitals to form molecular orbitals?