Chalcopyrite is the main ore of_________________?
Chalcopyrite is the main ore of_________________?
A. Copper
B. Lead
C. Tin
D. Iron
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Deacon’s method is used for the manufacture of____________________?
Deacon’s method is used for the manufacture of____________________?A. Glauber’s salt
B. Common salt
C. Chlorine
D. Graphite electrodeOne of the steps during refining of cane sugar consists of addition of hydrated lime to the sugar syrup followed by carbonation of the resulting solution. The purpose of this step is to
Question: One of the steps during refining of cane sugar consists of addition of hydrated lime to the sugar syrup followed by carbonation of the resulting solution. The purpose of this step is to
[A].adjust the pH of the syrup. [B].
remove the coloring matter from the syrup. [C].
reduce the viscosity of the syrup. [D].
improve the rate of crystallisation of sugar. Answer: Option A
Explanation:
No answer description available for this question.
Chrome tanning and vegetable tanning are done for ________________?
Chrome tanning and vegetable tanning are done for ________________?A. Light & heavy leather respectively
B. Heavy & light leather respectively
C. Both light & heavy leather
D. Neither light nor heavy leatherMineral oils (e.g. petroleum oils) are preferred over fatty oils (e.g. mustard oil, ghee, tallow, palm oil, olive oil etc.) as a lubricant due to its
Question: Mineral oils (e.g. petroleum oils) are preferred over fatty oils (e.g. mustard oil, ghee, tallow, palm oil, olive oil etc.) as a lubricant due to its
[A].poor oxidation stability and high gum forming tendency. [B].
greater tendency of decomposition at elevated temperature. [C].
hydrolysis tendency in presence of water. [D].
all (a), (b) and (c). Answer: Option D
Explanation:
No answer description available for this question.
Lime and soda ash are added to water to remove ___________________?
Lime and soda ash are added to water to remove ___________________?A. Bicarbonates & sulphates of calcium and magnesium
B. Undesirable taste and odour
C. Bacteria
D. Its corrosivenessOxidation 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.