BALOCHISTAN PUBLIC SERVICE COMMISSION
COMPETITIVE EXAMINATION 2021
FOR RECRUITMENT TO THE POSTS OF
ASSISTANT COMMISSIONER/SECTION OFFICER (B-17)
IN THE SERVICES & GENERAL ADMINISTRATION DEPARTMENT
APPLIED CHEMISTRY
July 07, 2021
Total Marks 150
Time Allowed 03 Hours
NOTE
I Attempt any five questions; all questions carry equal marks
II All the parts (if any) of each Question must be attempted at one place instead of at different places
III Candidate must write Q No in the Answer Book in accordance with Q No in the Q Paper
IV No Page/Space be left blank between the answers, all the blank pages of Answer Book must be crossed
V Extra attempt of any question or any part of the attempted question will not be considered
Q No 1 Explain the steps involved in municipal wastewater treatment (30)
Q No 2 Define fermentation. Explain it in terms of food processing (30)
Q No 3 Discuss the continuous process for soap preparation (30)
Q No 4 a Differentiate between fine and heavy chemicals (15)
b Differentiate among distilled, mineral and oxygenated water (15)
Q No 5 Discuss in detail the extraction method used for essential oils (30)
Q No 6 Discuss the production of varnishes with the help of its flow sheet (30)
Q No 7 Explain how pulp is processed for paper making in paper mill (30)
Q No 8 Define coal carbonization. Explain the carbonization products (30)
Q No 9 Explain the methods followed for the preparation of urea (30)
Q No 10 a What are ceramics? How traditional ceramics are different from new/advanced ceramics (15)
b Write a detailed account of the classification of ceramics (15)
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