Introduction to Nitric Acid

Q. Which of the following substances isn't acidic in nature?

1. Baking Soda
2. Curd
3. Orange
4. Vinegar

Q.

Which of the following is also known as aqua fortis?

1. Sulphuric acid

2. Hydrochloric acid

3. Perchloric acid

4. Nitric acid

Q.

(i)What is aqua regia?

(ii)Give any two uses of aqua regia.

Q.

(i)What is aqua regia?

(ii)Give any two uses of aqua regia.

Q.

Describe the physical properties of nitric acid.

Q.

In the preparation of nitric acid from KNO₃ concentrated sulphuric acid is used in place of concentrated hydrochloric acid. Why?

Q.

Which of the following are the physical properties of nitric acid?

1. Colourless

2. Bitter

3. Highly soluble

4. Toxic

Q.

Define eutrophication.

Q. Sort the below statements to obtain the process in which nitrogenous fertilizers are affect to the environment.
(i) Nitrogenous fertilizers used for higher yield in agriculture
(ii) Fertilizers reach the waterbodies
(iii)Growth of algae and aquatic plants in waterbodies
(iv) Rainfall causes surface run-off​​​​​​​

1. (i), (iv), (ii) and (iii)
2. (ii), (iv), (i) and (iii)
3. (i), (iii), (iv) and (ii)
4. (ii), (i), (iv) and (iii)

Q.

In a laboratory which is the other compound that is used along with sulphuric acid to produce nitric acid?

1. $KN{O}_3$
2. $HCl$
3. $N{H}_3$
4. $S{O}_2$

Q. Potash alum is used as:

1. Water softner
2. Mordant
3. Stop bleeding
4. Drying agent

Q.

Nitrogen dioxide dissolves in atmospheric moisture or rainwater in the presence of oxygen to form_____.

1. $N_{2}O$
2. $HN{O}_3$
3. $NO$
4. $N{O}_2$

Q.

Major industries that use nitric acid for manufacturing are:

1. Fertilizer industries

2. Explosives industry

3. Automotive industry

4. Mining industries

Q. Parathion is a pesticide. In which one of the following categories it belongs?

1. Organochlorine
2. Synthetic pyrethroids
3. Carbamate
4. Organophosphate

Q. Nitric acid is manufactured by the Ostwald process in which nitrogen dioxide reacts with water. The reaction is as follows:

1. $8$
2. $6$
3. $5$
4. $4$

Q.

Major industries that use nitric acid for manufacturing are:

1. Fertilizer industries

2. Explosives industry

3. Automotive industry

4. Mining industries

Q. What is the chemical formula of triple superphosphate?

1. $Ca\left(H_{2}P{O}_4\right).2H_{2}O$
2. $Ca{\left(H_{2}P{O}_4\right)}_2.H_{2}O$
3. $Ca\left(H_{2}P{O}_4\right).3H_{2}O$
4. $CaS{O}_4.3H_{2}O$

Q.

Why NO2 us called mixed or double acid anhydride?

Q.

Which of the following are the physical properties of nitric acid?

1. Colourless

2. Bitter

3. Highly soluble

4. Toxic