Options:
- A. ideal solution
- B. zeotropic solution
- C. azeotropic solution
- D. non-ideal solution
View Answer
B. zeotropic solution
Chemistry
Zn(s)/Zn+2(aq) 1M | | Cu+2(aq) 1M/Cu(s) is representation of reaction in______________?
Options:
- A. Daniel cell
- B. Downs cell
- C. Voltaic cell
- D. Nelsons cell
View Answer
C. Voltaic cell
Which of the following is true in the case of Zn-Cu cell ?
Options:
- A. The flow of electrons takes place from copper to zinc
- B. E0red of copper electrode is less than that of zinc electrode
- C. Zinc acts as an anode and copper as cathode
- D. All are correct
View Answer
C. Zinc acts as an anode and copper as cathode
In K2Cr2O7 the oxidation number of chromium is____________________?
Options:
- A. 7
- B. 6
- C. -7
- D. -6
View Answer
B. 6
With impurities like P and S the open hearth furnace is lined with ?
Options:
- A. SiO2
- B. Fe2O3
- C. FeO
- D. CaO MgO
View Answer
D. CaO MgO
The important monomers of acryclic resins is__________________?
Options:
- A. Vinyl chloride
- B. Styrene
- C. Methylmethacrylate
- D. Hexamethylenediamine
View Answer
C. Methylmethacrylate
Polyester resins are the product of the reaction of__________________?
Options:
- A. Dihydric alcohol and dicarboxylic aromatic acids
- B. Polyamines with aliphatic dicarboxylic acids
- C. Styrene in the presence of catalyst
- D. Epichlorohydrin with diphenylol propane
View Answer
A. Dihydric alcohol and dicarboxylic aromatic acids
The cooling of molten urea by air in the tower is called______________________?
Options:
- A. prilling
- B. evaporation
- C. condensation
- D. crystallization
View Answer
A. prilling
Which of the following potassium fertilizers are more useful for horticultural crops tobacco & potatoes ?
Options:
- A. KCI
- B. KNO3
- C. K2SO4
- D. KMnO4
View Answer
B. KNO3
Radiations are absorbed in_______________?
Options:
- A. Spectrophotometer method
- B. Dilatometric method
- C. Optical relation method
- D. Refractometric method
View Answer
A. Spectrophotometer method