Practice Test: Question Set - 41
1. Riboflavin is a/an
- (A) Vitamin
- (B) Analgesic drug
- (C) Anaesthetics
- (D) Anti-malarial drug
2. Coke oven gas consists mainly of
- (A) H2 &
CH4
- (B) CO
& CO2
- (C) H2 &
CO
- (D) CH4 &
CO
3. Sea weeds are an important source of
- (A) Fluorine
- (B) Chlorine
- (C) Bromine
- (D) Iodine
4. A good quality coal should have
- (A) Low fusion point of
ash
- (B) High ash content
- (C) High sulphur content
- (D) None of these
5. Bakelite is
- (A) Same as Polytetrafluoroethylene
(PTFE)
- (B) An inorganic polymer
- (C) Same as thermosetting
phenol-formaldehyde
- (D) Not a polymer
6. Potassium is kept & transported under
- (A) Water
- (B) Liquid ammonia
- (C) Kerosene oil
- (D) Alcohol
7. Oils and fats are converted to soap in a process called
- (A) Hydrogenation
- (B) Esterification
- (C) Saponification
- (D) None of these
8. Pick out the wrong statement.
- (A) High early strength
cement are made from materials having high silica to lime ratio
- (B) The function of
gypsum in cement is to enhance its initial setting rate
- (C) Acid resistant
cements are known as silicate cement
- (D) Major component of
greyish Portland cement is tricalcium silicate
9. Free alkali in a toilet soap is __________ that in a laundry shop.
- (A) Less than
- (B) More than
- (C) Same
- (D) None of these
10. A substance produced by a living organism and capable of anti-microbial activity is called a/an
- (A) Antibiotic
- (B) Antiseptic
- (C) Disinfectant
- (D) None of these
11. Solvay process is not used for the manufacture of potassium carbonate, because of the reason that potassium bicarbonate
- (A) Is prone to thermal
decomposition
- (B) Has high water
solubility and is unstable
- (C) Is soluble in
ammonium chloride and potassium chloride solution
- (D) All (a), (b) and (c)
12. Washing soda is chemically represented by
- (A) Na2CO3
- (B) Na2CO3.H2O
- (C) Na2CO3.10H2O
- (D) NaHCO3
13. Which of the following is a disaccharide?
- (A) Sucrose
- (B) Glucose
- (C) Starch
- (D) Maltose
14. Absorption of SO3 in 97% H2SO4 is
- (A) Exothermic
- (B) Endothermic
- (C) Not possible
- (D) None of these
15. Out of the following processes of paper pulp manufacture, the maximum corrosion problem in digestion & handling equipments is encountered in the __________ process.
- (A) Mechanical
- (B) Sulphate/Kraft
- (C) Sulphite
- (D) Neutral sulphite
semi-chemical
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