Organic Impurities

Q. What are the different types of inorganic and organic impurities generally present in sewage?​

Q.

Name three organic impurities present in sewage. [3 MARKS]

Q.

The sewage water has dissolved and suspended impurities that are called ___________.

1. Drain

2. Contaminant

3. Gaseous impurities

4. All of these

Q.

What are the various contaminants present in wastewater? Give examples. [2 MARKS]

Q.

Question 19

Match the items of Column I with the items of Column II with reference to sewage.

$\begin{array}{cc}& \\ ColumnI& ColumnII\\ \left(a\right)Inorganicimpurities& \left(i\right)phosphorusandnitrogen\\ \left(b\right)Organicimpurities& \left(ii\right)nitratesandphosphates\\ \left(c\right)Nutrients& \left(iii\right)choleraandtyphoid\\ \left(d\right)Bacteria& \left(iv\right)pesticidesandherbicides\end{array}$

Q. List the types of impurities in sewage water with an example of each. (2 marks)

Q. Read the following statements carefully and choose the correct options.

(i) The inorganic impurities present in wastewater are herbicides, pesticides, oil and more.
(ii) The organic impurities are phosphates, metals, nitrates, and more.
(iii) There are no germs or bacteria present in wastewater.

1. All the statements are incorrect.
2. All the statements are correct.
3. Statements (i) and (iii) are incorrect, but statement (ii) is correct.
4. Statements (i) and (ii) are incorrect, but statement (iii) is correct.

Q. What are the different types of inorganic and organic impurities generally present in sewage?​

Q. What is sewage? What are contaminants? [2 MARKS]

Q.

Question 2

Which type of organic and Inorganic impurities are present in sewage?

Q.

Accumulation of fertilizers in ponds and lakes that leads to the overgrowth of algae and other water plants is called

Q.

Through what, water pollution and soil pollution may be caused?

Q.

Question 15

Animal waste, oil and urea are some of the organic impurities present in sewage. Name two more organic impurities present in sewage.

Q. Oxygen content is in the dead zones in oceans.

1. low
2. high
3. very high

Q. Dead plants and chemicals contaminate water.

1. \N
2. \N

Q. is required by microbes to decompose organic wastes efficiently.

1. Nitrogen
2. Oxygen
3. Hydrogen
4. Carbon dioxide

Q. Animal wastes are impurities while metals are impurities present in the sewage.

1. organic
2. inorganic
3. acidic
4. basic

Q. Microbes can degrade organic waste.

1. \N
2. \N

Q. is required by microbes to decompose organic wastes efficiently.

1. Nitrogen
2. Oxygen
3. Hydrogen
4. Carbon dioxide

Q. Presence of metals in wastewater is a type of ____ impurity.

1. organic
2. inorganic
3. Viruses
4. bacteria

Q. Oxygen content is in the dead zones in oceans.

1. low
2. high
3. very high

Q.

Question 2

Which type of organic and Inorganic impurities are present in sewage?

Q. Presence of _______ in water bodies causes excessive growth of algae in water.

1. DDT
2. CNT
3. methane
4. coal

Q. is required by microbes to decompose organic wastes efficiently.

1. Nitrogen
2. Oxygen
3. Hydrogen
4. Carbon dioxide

Q. is required by microbes to decompose organic wastes efficiently.

1. Nitrogen
2. Oxygen
3. Hydrogen
4. Carbon dioxide