M.Sc. (Semester III) (CBCS) Examination Nov/Dec-2018
Analytical Chemistry
APPLIED ANALYTICAL CHEMISTRY
Time: 2½ Hours
Max. Marks: 70
Instructions: All questions are compulsory. Answer to all questions are to be written in one answer book only. All questions carry equal marks. Figures to the right indicate full marks. Draw neat and labeled diagram wherever necessary. Use of calculator and log table is allowed.
Q.1
Select the most correct alternative and rewrite the answer.
14
The triacid digestion is carries out using a mixture of and
HNO3, HCI, HCIO4
HN3, H2SO4, HCIO4
H2SO4, HCI, HCIO4
HNO3, CH3COOH, HCIO4
Plants contain macronutrients.
N. P. K
Ca, K
Mg, Ca
Mg
Full form of DDQ
Dichlorodiphenyltrichloroethane
Dichlorodiphenyltriethane
Dichlorodiphenyltrichlorthane
Dichlorodiphenylrichloromethane
acid is generated at armpit which has bad odour.
Propanoic acid
Salicylic acid
Barbutyric acid
Fatty acid
Bauxite ore is a major ore with
alumina and silica
alumina and iron
aluminum and copper
silica and magnesium
and are the constituents of feed stock.
fodder and wheat bhusa
fodder and ruphase
fodder and forage
forage and feeding stuffs
In bronze alloy percentage of copper is
60-90%
60-80%
40-90%
60-70%

Kjeldhal method is used for the estimation of
P
S
N
N
K
are deodorants.
Hexachlorophenone
Hexachlorophenol
Chloropropane
Hexachloromethane
10) Molecular formula of Ziram is
C6H12N2S4Zn
C6H11N2S4Zn
C6H12N2S3Zn
C6H11N3S4Zn
11) Pyrolusite is the ore of
Fe
Zn
Mn
Cu
Page 2 of 2
SLR-VF-183
12) In Kjedhal method CuSO4, K2SO4 are used as
catalyst
reagent
reaction mixture
indicator
13) ore is used to estimate Fe.
Hematite
Bauxite
Pyrolusite
Dolomite
14) From fodder and are analysed by
Ca and Ba
Mg and Ba
Zn and Ca
Ca and Mg
Q.2

Answer the following (any four)
08
What is the difference between creams and lotions?
What is the importance of soil reaction?
Write the name and structure of DDT.
Write about soil structure.
Give the composition of solder alloy and its uses.

Write notes on (Any two)
06
Field description of soils
Analysis of chromium
Ion exchange capacity of soils
Q.3

Answer the following(Any two)
08
What are cosmetics? How non volatile matter ash and mineral contents can be determined from it.
How is the solder alloy analysed for the estimation of its constituents.
How is the moisture determined from plant sample by different methods of ashing.

Answer he following (Any one)
06
Give in details methods of plant analysis for starch and sugar.
Write analysis of Cupro-Nickel alloy.
Q.4

Answer the following (Any two)
10
What are creams and lotions? Write their composition give determination of water and propylene glycol from it.
Write the classification of pesticides and insecticides and procedures for analysis of chloridane.
How is the sampling of fertilizer done? How theammiona nitrogen estimated for it.

Answer the following (Any one)
04
What is mixed fertilizer? Write the various procedures used for decomposition of fertilizer and experimental procedure for estimation of total phosphorous.
What is the role of deodorant and antiperspirant? Write analysis of it with respect to aluminium and titanium.
Q.5
Answer the following (Any Two)
14
a)Describe the experimental procedure for the determination of desired constituents in Dolomite ore.
b)Which mineral constituents are present in plants? Write the determinations of calcium magnesium and sulphur.
c)What are fertilizer and manure? Write analysis of potassium by STPB method.