Ostwald Process

Q. Describe the Ostwalds process for the manufacture of nitric acid with labelled diagram.

Q.

Give laboratory method for the preparation of oxygen.

Q. Give two chemical tests to distinguish between dilute nitric acid and dilute hydrochloric acid.

Q.

What is the correct order of acidic strengths of oxides of nitrogen?

1. ${\mathrm{N}}_2\mathrm{O}>{\mathrm{N}}_2{\mathrm{O}}_5>{\mathrm{N}}_2{\mathrm{O}}_3>\mathrm{NO}$

2. ${\mathrm{N}}_2{\mathrm{O}}_5>{\mathrm{N}}_2{\mathrm{O}}_3>\mathrm{NO}>{\mathrm{N}}_2\mathrm{O}$

3. ${\mathrm{N}}_2\mathrm{O}>\mathrm{NO}>{\mathrm{N}}_2{\mathrm{O}}_3>{\mathrm{N}}_2{\mathrm{O}}_5$

4. ${\mathrm{N}}_2{\mathrm{O}}_3>\mathrm{NO}>{\mathrm{N}}_2\mathrm{O}>{\mathrm{N}}_2{\mathrm{O}}_5$

Q. The first step in the manufacture of nitric acid is the catalytic oxidation of ammonia. Name the catalyst used.

1. Silver
2. Plutonium
3. Gold
4. Platinum

Q.

Iodine $\left({\mathrm{I}}_2\right)$ reacts with Concentrated Nitric acid$\left({\mathrm{HNO}}_3\right)$to give:

1. $\mathrm{HI}$

2. ${\mathrm{HOIO}}_2$

3. ${\mathrm{HOIO}}_3$

4. All Of These

Q.

Explain the following:

Concentrated nitric acid appears yellow when it is left standing in a glass bottle.

Q.

What property of Sulphuric acid is shown by the reaction of concentrated Sulphuric acid when heated with

(A) Potassium nitrate

(B) Carbon.

Q.

How can you prove that hydrochloric acid contains
(i) hydrogen,
(ii) chlorine?

Q.

Reactants used for manufacturing nitric acid in ostwald process are.

1. $N{H}_3$ and $O_2$

2. $N{H}_3$ and $NO$

3. $N{H}_3$ and $N{O}_2$

4. $N{H}_3$ and $NO$ and $H_{2}O$

Q. distillation is used to concentrate the nitric acid obtained from Ostwald's process.

1. Fractional
2. Simple
3. Vaccum

Q.

In ostwald proces ammonia gas and air are taken in 1: ___ ratio.

Q.

Except Platinum, any of the metals cannot be used as catalyst in ostwald process.

1. False

2. Ture

Q.

Which of the following is not an example of green chemistry?

1. Replacement of CFC's by CO₂ as blowing agent in the manufacture of polystyrene from sheets

2. Calalytic dehydrogenation of the diethanol amine without using cyanide and formaldehyde

3. Reacting methylamine and phosgene to produce methyl isocyanate

4. Replacement of organotins by 'sea-nine' as antifouling compounds in sea marine.

Q. Name the product, catalyst and approximate temperature maintained in Ostwald's process. How is the temperature maintained in the Ostwald's process?

Q. In ostwald process, ammonia gas and air are taken in 1: ratio.

1. 10
2. 11
3. 1
4. 5

Q. ___ is the oxidizing agent which converts ammonia $N{H}_3$ to nitric acid $HN{O}_3$ in ostwald process.

1. Oxygen
2. Ozone
3. Nitrogen
4. Hydrogen

Q.

Nitric Acid is manufactured by

1. Habers process

2. Contact process

3. Ostwalds process

4. Bosch process

Q.

In the Ostwald's process, 95% ammonia is converted to nitric oxide (NO).

The remaining 5% is burnt into __________ .

1. $N{O}_2$ and $Steam$.

2. $N_2$ and $Steam$.

3. $N_{2}O$ and $Steam$.

4. $N{H}_{4}OH$

Q.

Nitrogen dioxide gas dissociates to give nitric oxide and oxygen. For this reaction, when a graph is plotted between concentration of ${\mathrm{NO}}_2$ and time, the slope of the tangent drawn at time $t=10\mathrm{s}$ is found to be $6.8\times {10}^{-4}\mathrm{mol}{\mathrm{L}}^{-1}{\mathrm{s}}^{-1}$. Predict the slope of the graph at $t=10\mathrm{s}$ when the concentration of $\mathrm{NO}$ and ${\mathrm{O}}_2$ are plotted against time. Justify your answer.

Q.

Write the equation for the laboratory preparation of nitric acid from potassium nitrate and concentrated sulphuric acid

Q.

Select the correct option/s for ostwald process.

1. Oxidation of ammonia $N{H}_3$ in catalytic chamber gives nitric oxide.

2. Oxidation of nitric oxide $NO$ in oxidation chamber gives nitrogen dioxide.

3. Absorption of nitric oxide $NO$ in oxidation chamber gives nitric acid $HN{O}_3$.

4. Absorption of nitrogen dioxide in water gives nitric acid $HN{O}_3$.

Q.

In which stage of Ostwald's process is quartz used?

1. Catalytic chamber

2. Absorption tower

3. Oxidation chamber

4. Reduction chamber

Q. Which of the following is not a step followed in the Ostwald process?​

1. Oxidation of nitric oxide​
2. Oxidation of ​nitrogen dioxide​
3. Catalytic oxidation of ammonia​
4. Absorption of nitrogen dioxide​

Q. Which among the following is a dehydrating agent for sucrose?

1. $Ca(OH{)}_2$
2. $H_{2}S{O}_4$
3. $CaC{O}_3$
4. $NaCl$

Q.

Which catalyst(s) is(are) used for the industrial preparation of sulphuric acid?

1. Iron

2. Aluminium

3. Platinum

4. Vanadium pentaoxide

Q. Given a balanced chemical equation for each of the following:
Laboratory preparation of Nitric acid.

Q.

The first step in the manufacture of Nitric acid is the catalytic oxidation of Ammonia. What is the name of the catalyst?

1. Molybdenum

2. Finely divided iro

3. Platinum

4. Vanadium pentoxide

Q.

So if zinc + sulphuric acid 👉 Hydrogen gas.................................... so do Pumpkin or dark chocolate + Acid rain also gives Hydrogen

Q. Choose the option correctly depicting the order of steps involved in Ostwald’s process. ​

1. Absorption of nitrogen dioxide​
2. Catalytic oxidation of ammonia​
3. Oxidation of nitric oxide​

1. ii$\to$i$\to$ iii​
2. ii$\to$iii$\to$ i​
3. iii$\to$ii$\to$ i
4. i$\to$ii$\to$ iii​