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A certain reaction ocuurs in two step...

A certain reaction ocuurs in two steps as
(I) `2SO_(2(g))+2NO_(2(g)) to 2SO_(3(g))+2NO_((g))`
`(ii) 2NO_((g) ) +O_(2) (g) to 2NO_(2(g))`
In the reaction ,______.

A

`NO_(2)(g)` is intermediate

B

`NO(g)` is intermediate

C

`NO(g)` is catayst

D

`O_(2)(g)` is intermediate

Text Solution

Verified by Experts

The correct Answer is:
B
Given
Step I :
`2SO_(2)(g)+2NO_(2)(g)to2SO_(3)(g)+@NO(g)`
Step II : `2NO(g)+O_(2)(g)to2NO_(2)(g)`
An intermediate formed in the reaction is not a part of overall reaction.
Net reaction : `2SO_(2)(g)+O_(2)(g)to2SO_(3)(g)`
As, No(g) formed in first elementary step is neither a reactant nor product in the net reaction. It is formed in one elmentary step and consumed in the next step. Thus NO,=(g) act as an intermediate.
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Knowledge Check

  • Recognise catalyst in following set of reaciton : 2SO_(2(g))+2NO_(2(g)) rarr 2SO_(3(g))+2NO_((g)) 2NO_((g)) + O_(2(g)) rarr 2NO_(2(g))

    A
    `SO_(2("g"))`
    B
    `NO_(2("g"))`
    C
    `O_(2("g"))`
    D
    `NO_(("g"))`

  • एक निश्चित अभिक्रिया दो पदों में निम्न प्रकार होती है: (i) 2SO_(2(g)) +2NO_(2(g)) to 2SO_(3(g)) +2NO_((g)) (ii) 2NO_((g)) + O_(2(g)) to 2NO_(2(g)) अभिक्रिया में,

    A
    `NO_(2(g))` मध्यवर्ती है
    B
    `NO_((g))` मध्यवर्ती है
    C
    `NO_((g))` उत्प्रेरक है
    D
    `O_(2(g))` मध्यवर्ती है

  • The reaction takes place in two steps as (i) NO_(2) Cl _((g)) overset(K_(1)) to NO_(2(g)) +Cl_((g)) (ii ) NO_(2) Cl_((g)) +Cl_((g)) overset(K_(2)) to NO_(2(g)) +Cl_(2(g)) Identify the reaction intermediate .

    A
    `NO_(2) Cl_((g))`
    B
    `NO_(2(g))`
    C
    `Cl_(2(g))`
    D
    `Cl_((g))`

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