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Homogeneous Catalysis

Which of the ...

Question

Which of the following is an example of heterogeneous catalysis?

4 N H_{3 (g)}

+ 5

O_{2 (g)}

P t_{(s)} - -- \to

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2 S O_{2}

O_{2}

N O_{(g)} - -- \to 2 S O_{3}

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C H_{3} C O O C H_{3 (l)}

H_{2} O

H C l_{(a q)} - --- \to

C H_{3} C O O H

C H_{3} O H

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C_{12} H_{22} O_{11}

H_{2} O

H_{2} S O_{4} - --- \to

C_{6} H_{12} O_{6}

C_{6} H_{12} O_{6}

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Solution

The correct option is A $4 N H_{3 (g)}$ + 5 $O_{2 (g)}$ $P t_{(s)} - -- \to$
The catalytic process in which the reactants and the catalyst are in different phases is known as heterogeneous catalysis.

So here the given reaction,

In presence of $P t (s)$ , $4 N H_{3} (g) + 5 O_{2} (g) \to 4 N O (g) + H_{2} O (g)$

Here, $P t (s)$ is in the solid-state whereas the reactants are in the gaseous state.

Hence, option $A$ is the correct answer.

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Similar questions

Q. In which of the following reactions heterogeneous catalysis is involved?
(I)

2 S O_{2}

O_{2}

V_{2} O_{5} ⟶

2 S O_{3}

(II)

2 S O_{2}

O_{2}

N O_{(g)} ⟶

2 S O_{3}

(III)

2 N_{2} + 3 H_{2}

F e ⟶

2 N H_{3}

(IV)

C H_{3} C O O C H_{3}

H_{2} O

H C l_{(a q)} ⟶

C H_{3} C O O H

C H_{3} O H

C_{12} H_{22} O_{11} + H_{2} O \to C_{6} H_{12} O_{6} + C_{6} H_{12} O_{6}

(excess) (gulcose) (fructose)

Rate law of above equation is expressed as:

CO₂ + H₂O → C₆H₁₂O₆ + O₂ + H₂O

Is the given equation correct? If not, correct it.

Question 27
Which of the following equations is the summary of photosynthesis?

(a) $6 CO_2 + 12 H_2 O \rightarrow C_6H_{12}O_6+6O_2 + 6H_2O$
(b) $6CO_2+H_2O+Sunlight \rightarrow C_6 H_{12}O_6+O_2+6H_2O$
(c) $6CO_2+12H_2O+Chlorophyll+Sunlight \rightarrow C_6H_{12}O_6 + 6O_2 + 6H_2O$
(d) $6CO_2 + 12H_2O + Chlorophyll+Sunlight \rightarrow C_6 H_{12}O_6 + 6CO_2+6H_2O$

Balance the given equation:

CO2+H2O---->C6H12O6+O2+H2O

ANS .(1) 6CO2+7H2O----->C6H12O6+6O2+H2O is incorrect

Where as (2) 6CO2+12H2O------>C6H12O6+6O2+6H2O is correct.

Why first answer is incorrect and second answer is correct

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