10% oleum comprises of 10% free_________________?
10% oleum comprises of 10% free_________________?
A. SO2
B. H2SO3
C. SO3
D. H2SO4
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Which of the following is the second major component of cement ?
Which of the following is the second major component of cement ?A. Al2O3
B. SiO2
C. CaO
D. Fe2O3Impurities present in brine is normally removed by treatment with ?
Impurities present in brine is normally removed by treatment with ?A. NH3 and CO2
B. Lime and soda ash
C. Lime, ammonia and carbon
D. All A , B. and C.Favourable conditions for the liquefaction of gases in general are
Question: Favourable conditions for the liquefaction of gases in general are
[A].high pressure & low temperature. [B].
low pressure & high temperature. [C].
high pressure & high temperature. [D].
low pressure & low temperature. Answer: Option A
Explanation:
No answer description available for this question.
The most stable allotropic form of phosphorous is the _________________ phosphorous?
The most stable allotropic form of phosphorous is the _________________ phosphorous?A. White
B. Black
C. Yellow
D. RedCarborundum consists mainly of_________________?
Carborundum consists mainly of_________________?A. Bauxite
B. Silicon carbide
C. Boron carbide
D. Calcium carbideVinyl chloride (CH2 = CH.Cl) is produced by the thermal pyrolysis of ethylene dichloride at a pressure & temperature of __________________?
Vinyl chloride (CH2 = CH.Cl) is produced by the thermal pyrolysis of ethylene dichloride at a pressure & temperature of __________________?A. 4 kgf/cm2 & 500°C
B. 10 kgf/cm2 & 1000°C
C. 40 kg/cm2 & 200°C
D. 100 kgf/cm2 & 500°C