Regarding criteria of catalysis,which one of the following statements is not true?
- AThe catalyst is unchanged chemically at the end of the reaction.
- B$A$ small quantity of catalyst is often sufficient to bring about a considerable amount of reaction.
- CIn a reversible reaction,the catalyst alters the equilibrium position.
- DThe catalyst accelerates the reaction.
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Similar Questions
Match the catalyst (Column-$I$) with products (Column-$II$)
Column-$I$ Catalyst Column-$II$ Product $(a)$ $V_2O_5$ $(i)$ Polyethylene $(b)$ $TiCl_4/Al(Me)_3$ $(ii)$ Ethanal $(c)$ $PdCl_2$ $(iii)$ $H_2SO_4$ $(d)$ Iron oxide $(iv)$ $NH_3$
| Column-$I$ Catalyst | Column-$II$ Product |
| $(a)$ $V_2O_5$ | $(i)$ Polyethylene |
| $(b)$ $TiCl_4/Al(Me)_3$ | $(ii)$ Ethanal |
| $(c)$ $PdCl_2$ | $(iii)$ $H_2SO_4$ |
| $(d)$ Iron oxide | $(iv)$ $NH_3$ |
DifficultJEE MAIN 2019
View SolutionMatch the following.
List-$I$ (Reaction) List-$II$ (Catalyst) $A$. $N_{2(g)} + 3H_{2(g)} \longrightarrow 2NH_{3(g)}$ $I$. $Ni$ $B$. $2H_{2(g)} + O_{2(g)} \longrightarrow 2H_2O_{(l)}$ $II$. $Pt$ $C$. $CO_{(g)} + 3H_{2(g)} \longrightarrow CH_{4(g)} + H_2O_{(g)}$ $III$. $ZnO-Cr_2O_3$ $D$. $CO_{(g)} + 2H_{2(g)} \longrightarrow CH_3OH_{(g)}$ $IV$. $Fe$
The correct answer is:
| List-$I$ (Reaction) | List-$II$ (Catalyst) |
|---|---|
| $A$. $N_{2(g)} + 3H_{2(g)} \longrightarrow 2NH_{3(g)}$ | $I$. $Ni$ |
| $B$. $2H_{2(g)} + O_{2(g)} \longrightarrow 2H_2O_{(l)}$ | $II$. $Pt$ |
| $C$. $CO_{(g)} + 3H_{2(g)} \longrightarrow CH_{4(g)} + H_2O_{(g)}$ | $III$. $ZnO-Cr_2O_3$ |
| $D$. $CO_{(g)} + 2H_{2(g)} \longrightarrow CH_3OH_{(g)}$ | $IV$. $Fe$ |
The correct answer is:
The catalyst used in the manufacture of methanol from water gas is
Medium
View SolutionIn this reaction,dilute $H_2SO_4$ is called
$\underset{\text{Sucrose}}{\mathop{C_{12}H_{22}O_{11}}}+H_2O$ $\xrightarrow{dil. H_2SO_4}\underset{\text{Fructose}}{\mathop{C_6H_{12}O_{6(aq)}}}+\underset{\text{Glucose}}{\mathop{C_6H_{12}O_{6(aq)}}}$
$\underset{\text{Sucrose}}{\mathop{C_{12}H_{22}O_{11}}}+H_2O$ $\xrightarrow{dil. H_2SO_4}\underset{\text{Fructose}}{\mathop{C_6H_{12}O_{6(aq)}}}+\underset{\text{Glucose}}{\mathop{C_6H_{12}O_{6(aq)}}}$
Medium
View SolutionWhich of the following reactions requires a catalyst?
Medium
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