Alum is commercially produced from
Question: Alum is commercially produced from
[A].
gypsum
feldspar
galena
bauxite
[A].
[B].
[C].
[D].
Answer: Option D
Explanation:
No answer description available for this question.
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Commercial production of soda ash by Solvay process requires limestone, __________ as raw materials.
Question: Commercial production of soda ash by Solvay process requires limestone, __________ as raw materials.
[A].coke and sand [B].
brine and coal [C].
coke and caustic soda [D].
none of these Answer: Option B
Explanation:
No answer description available for this question.
Mercury electrolytic cells are preferred over diaphragm electrolytic cell (for production of caustic soda), as it
Question: Mercury electrolytic cells are preferred over diaphragm electrolytic cell (for production of caustic soda), as it
[A].has larger production capacity per unit cell. [B].
consumes less power per ton of Cl2 produced. [C].
produces high purity (70%) caustic soda directly. [D].
all (a), (b) and (c). Answer: Option D
Explanation:
No answer description available for this question.
Joining of thin foils is preferred to be done by
Question: Joining of thin foils is preferred to be done by
[A].gamma rays [B].
X-rays [C].
microwaves [D].
gas welding Answer: Option C
Explanation:
No answer description available for this question.
Compressibility factor of a gas is
Question: Compressibility factor of a gas is
[A].not a function of its pressure. [B].
not a function of its nature. [C].
not a function of its temperature. [D].
unity, if it follows PV = nRT. Answer: Option D
Explanation:
No answer description available for this question.
‘Utilities’ in a chemical process plant includes compressed air, steam, water, electrical power, oxygen, acetylene, fuel gases etc. Utility costs for ordinary chemical process plants ranges roughly from __________ percent of the total product cost.
Question: ‘Utilities’ in a chemical process plant includes compressed air, steam, water, electrical power, oxygen, acetylene, fuel gases etc. Utility costs for ordinary chemical process plants ranges roughly from __________ percent of the total product cost.
[A].l to 5 [B].
10 to 20 [C].
25 to 35 [D].
35 to 45 Answer: Option B
Explanation:
No answer description available for this question.
Cemented carbide tools are not suitable for cutting
Question: Cemented carbide tools are not suitable for cutting
[A].aluminium [B].
brass [C].
cast iron [D].
steel Answer: Option A
Explanation:
No answer description available for this question.