8:74, 03,82, 5.2
04,೦೩, 83,52
0:೫2, ೦-3, 82, 5-4
Correct Answer:- ೦೧000,

‘Question69:
‘As Potassium carbonate and borax
B:-Barium compounds and red lead oxide
C=Borax and boric acid

D-Dolomite and Tin oxide

Correct Answer:- Option ®

Question70:-Match the following drugs in Column | with their raw material in Column I
॥ ॥

P. Parathion 1. Sodium hydroxide
൭.൧൭ 2. Methanol
3. Ethanol
4. Divinyl benzene
५1, 0.3
8-0-2, ೧-೩.
CP 3, 0-4
0:84, Q-1

Correct Answer:- Option-é
Question71:-In the manufacture of soda ash by Solvay process, the cost of product ‏وه‎ the tower height,
‘Acincreases, decreases, increases, decreases
Br-increases, increases, decreases, decreases
Cedecreases, increases, increases, decreases
D:-decreases, increases, decreases, decreases
Correct Answer:- Option ®
Question72::Which one of following processes used in the production of caustic soda ?
‘AcBrine purifier + multistage evaporator + diaphragm cell
B:-Brine purifier + diaphragm cell -+ Absorber
C-Brine purifier + diaphragm cell + multistage evaporator
D-Diaphragm cell + multistage evaporator ¬ Absorber
Correct Answer:- Option-C
Question73::Which one of the following process sequences is used in the sugar industry 7
‘ACa,HIPO, [Lime treatment + Crystallization + Crushing
B:-Ca,HPO, /Lime treatment + Multiple stage evaporation + Crystallization
C:Crushing + Crystallization + Ca,HiPO, /Lime treatment
D-Multiple stage evaporation + Ca,HP0, /Lime treatment + Crystallization
Correct Answer:- Option ®
Question74:-Match the following classification of refractories in Column I with their raw materials in

Column I
1 0

P. Acidic 1. Carbon graphite, chromite
6. Neutral 2. Alumina, Silica
R. Basic ३. Magnesite, dolomite

4. Copper, silicone
‏,۶ھ‎ 03,02
‏,2مھ‎ 0-103
कर, हक, ६३
0:೫3, ೦೩, 6-4
Correct Answer:- ೦೧0008.
‘Question75::Which of the following are post Taning operations ?
‘AcDeliming and bathing
B:-Soaking and Liming

C-Shaving, Splitting

and

with

imparts high density and high refracting power.

in NaCl losses.