Assertion :Catalytic converters in automobiles help in reducing pollution. Reason: Hydrocarbons are oxidised into $C O_{2}$ and $H_{2} O$ in the presence of an Oxidation catalyst (Pt or Pd) and NO is reduced to $N_{2}$ by reduction catalyst. Catalytic converter has dual catalyst system.

$C_{x} H_{y} + (x + \frac{y}{4}) O_{2} ⟶ x C O_{2} + \frac{y}{2} H_{2} O 2 N O + 2 C O ⟶ N_{2} + 2 C O_{2}$

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Assertion is correct but Reason is incorrect.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Both Assertion and Reason are incorrect.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
Catalytic converters in automobiles help in reducing pollution. A catalytic converter is an emission control device that converts toxic pollutants in exhaust gas to less toxic pollutants by catalyzing a redox reaction (oxidation or reduction).
Hydrocarbons are oxidised into $C O_{2}$ and $H_{2} O$ in the presence of an oxidation catalyst (Pt or Pd) and NO is reduced to $N_{2}$ by reduction catalyst. Catalytic converter has dual catalyst system. $C_{x} H_{y} + (x + \frac{y}{4}) O_{2} ⟶ x C O_{2} + \frac{y}{2} H_{2} O 2 N O + 2 C O ⟶ N_{2} + 2 C O_{2}$

Suggest Corrections

Similar questions

Assertion (A) The enthalpy of reaction remains constant in the presence of a catalyst.

Reason (R) A catalyst participating in the reaction forms different activated complex and lowers down the activation energy but the difference in enrgy of reactant and product remains the same.

(a) Both assertion and reason are correct and the reason is correct explanation of assertion
(b) Both assertion and reason are correct, but reason does not explain assertion.
(c) Assertion is correct, but reason is incorrect
(d) Both assertion and reason are incorrect
(e) Assertion is incorrect but reason is correct.

Assertion – The non-fusible impurities present in iron ore are removed by $C a C O_{3}$ .

Reason: $C a C O_{3}$ which decomposes into $C a O$ and $C O_{2}$ . The $C a O$ formed reacts with $S i O_{2}$ to remove silica

ASSERTION: n-Pentane and n-Hexane belong to a homologous series.

REASON: n-Pentane and n-Hexane belong to the same class of hydrocarbons and they differ by a - $C H_{2}$ - group.

Q. Assertion: The impurities such as

{SiO}_{2}

present in iron ore is removed by

{CaCO}_{3}

.

Reason:

CaO

formed by decomposition of

{CaCO}_{3}

reacts with

{SiO}_{2}

to form slag.

Assertion: Nitriding is the process of heating steel in presence of $N_{2}$ to convert it completely into iron nitride.

Reason: The surface of steel becomes hard after nitriding process

Join BYJU'S Learning Program