Portland cement consists mainly of__________________?
Portland cement consists mainly of__________________?
A. CaO & SiO2
B. SiO2 & Al2O3
C. CaO & Al2O3
D. CaO & Fe2O3
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Fusion of limestone and ______________ produces high alumina cement?
Fusion of limestone and ______________ produces high alumina cement?A. Sand
B. Bauxite
C. Quicklime
D. Calcite_________________ is produced using Polycondensation Reaction?
_________________ is produced using Polycondensation Reaction?A. Polythene
B. Phenol formaldehyde
C. Poly vinyl chloride
D. None of theseOxidation of SO2 to SO3 is favoured by
Question: Oxidation of SO2 to SO3 is favoured by
[A].low temperature and low pressure. [B].
low temperature and high pressure. [C].
high temperature and low pressure. [D].
high temperature and high pressure. Answer: Option B
Explanation:
No answer description available for this question.
Main constituent of limestone is
Question: Main constituent of limestone is
[A].CaCO3 [B].
MgCO3 [C].
Na2CO3 [D].
CaSO4 Answer: Option A
Explanation:
No answer description available for this question.
Nylon-6 is a__________________?
Nylon-6 is a__________________?A. Polyamide
B. Thermosetting resin
C. Polyester
D. None of theseCo-efficient of thermal expansion of glass is decreased by the addition of _______________ during its manufacture?
Co-efficient of thermal expansion of glass is decreased by the addition of _______________ during its manufacture?A. CaO
B. MnO2
C. ZnO
D. FeS