(b) Which of the following causes taste problem in water and has a rotten egg odor?
(i) Chlorine
(ii) Benzene
(iii) Nitrate
(iv) Hydrogen sulphide
(c) Fats or lipids produce energy Vi 9 kcal/g
(ii) 4 kcal/g
(iii) 2 kcal/g
(iv) 2000 kcal/g
(d) HPLC is an abbreviation for
(i) high profit liquid chromatography
(i) high pressure tography. liquid chroma
(ii) high performance low chromatography.
(iv) High profit low chromatography
UNIT-I
2. Define the following terms (any two) : 2x2=4
a) Mean deviation Standard deviation
(c) Accuracy and precession
3. (a) What is pH of a solution? Why is soil pH measurement useful? What are chelating agents and chelates? Draw the structure of M-EDTA complex.
(b) Write the names of two indicators used in EDTA titration.
UNIT-III
4. (a) What is dissolved oxygen? Why is the measurement of dissolved important? oxygen
1+2=3
Discuss briefly any three causes of water
pollution.
(b) Write a few lines about Fluoride Nilogon.
UNIT IV
5. Answer any questions : two from the following.3x2=6
(a) What are carbohydrates? Mention its function. Give one example each of monosaccharide and polysaccharide.
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