Discussion
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- Question
Styrene-butadiene-rubber (SBR) as compared to natural rubber has
Options- A. Poorer tensile strength.
- B. poorer resistance to oxidation.
- C. greater amount of heat build-up under heavy loading.
- D. all (a), (b) and (c).
- Correct Answer
- all (a), (b) and (c).
- 1. Starting raw material for the manufacture of alum is
Options- A. alumina
- B. gypsum
- C. bauxite
- D. ammonium bicarbonate Discuss
- 2. Salt cake is chemically represented by
Options- A. Na2SO4
- B. CaSO4.½H2O
- C. MgSO4
- D. BaSO4 Discuss
- 3. Which of the following is not a raw material used for the manufacture of ordinary glass?
Options- A. Iron oxide
- B. Soda ash
- C. Limestone
- D. Silica Discuss
- 4. Haemoglobin is a/an
Options- A. amino acid
- B. biological catalyst
- C. protein
- D. enezyme Discuss
- 5. The catalyst used in the manufacture of DDT (from chloral and chlorobenzene) is
Options- A. dilute H2SO4
- B. oleum
- C. ultraviolet light
- D. none of these Discuss
- 6. Esterification reaction produces
Options- A. detergent
- B. vanaspati
- C. soap
- D. mercaptans Discuss
- 7. Phosphate rock is a raw material for the manufacture of
Options- A. phosphoric acid
- B. phosphorous
- C. superphosphates
- D. all (a), (b) and (c) Discuss
- 8. Fusion of bauxite and __________ produces high alumina cement.
Options- A. alum
- B. limestone
- C. coke
- D. quartz Discuss
- 9. Fusel oil is a/an
Options- A. essential oil.
- B. extract from medicinal herbs.
- C. mixture of higher molecular weight alcohols (a by-product obtained during production of alcohol from molasses).
- D. none of these. Discuss
- 10. Pick out the endothermic reaction out of the following.
Options- A. C+½O2 = CO
- B. CO + 3H2 = CH4 + H2O
- C. CaCO3 = CaO + CO2
- D. CO +½O2 = CO2 Discuss
Chemical Process problems
Search Results
Correct Answer: bauxite
Correct Answer: Na2SO4
Correct Answer: Iron oxide
Correct Answer: protein
Correct Answer: oleum
Correct Answer: soap
Correct Answer: all (a), (b) and (c)
Correct Answer: limestone
Correct Answer: mixture of higher molecular weight alcohols (a by-product obtained during production of alcohol from molasses).
Correct Answer: CaCO3 = CaO + CO2
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