Question 19

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

$\begin{matrix} C o l u m n I & C o l u m n I I (a) I n o r g a n i c i m p u r i t i e s & (i) p h o s p h o r u s a n d n i t r o g e n (b) O r g a n i c i m p u r i t i e s & (i i) n i t r a t e s a n d p h o s p h a t e s (c) N u t r i e n t s & (i i i) c h o l e r a a n d t y p h o i d (d) B a c t e r i a & (i v) p e s t i c i d e s a n d h e r b i c i d e s \end{matrix}$

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Solution

Sewage is a complex mixture containing suspended solids, organic and inorganic impurities, nutrients, saprotrophic and disease causing bacteria and other microbes.

$\begin{matrix} C o l u m n I & C o l u m n I I (a) I n o r g a n i c i m p u r i t i e s & (i i) n i t r a t e s a n d p h o s p h a t e s (b) O r g a n i c i m p u r i t i e s & (i v) p e s t i c i d e s a n d h e r b i c i d e s (c) N u t r i e n t s & (i) p h o s p h o r u s a n d n i t r o g e n (d) B a c t e r i a & (i i i) c h o l e r a a n d t y p h o i d \end{matrix}$

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Similar questions

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

	Column - I		Column - II
A	Inorganic impurities	1	Phosphorus and nitrogen
B	Organic impurities	2	Nitrates and phosphates
C	Nutrients	3	Cholera and typhoid
D	Bacteria	4	Pesticides and herbicides

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.

Match the items in Column 1 with items in Column 2.

$\begin{matrix} Column 1 & Column 2 i) Anode-mud & a) protects objects from corrosion ii) Electroplating & b) purification of metals iii) Electrorefining & c) Au, Ag, Pt \end{matrix}$

Q. Match the impurities present in sewage with their types.

(i) Human faeces	(a) Inorganic
(ii) Metals	(b) Organic
(iii) Vibrio cholerae	(c) Bacteria

Q. This section questions each with two columns I and II. Match the items given in column I with that of column II.

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Question 19 Match the items of Column I with the items of Column II with reference to sewage. Column IColumn II(a) Inorganic impurities(i) phosphorus and nitrogen(b) Organic impurities(ii) nitrates and phosphates(c) Nutrients(iii) cholera and typhoid(d) Bacteria(iv) pesticides and herbicides