Chemical formula of oleum is
Question: Chemical formula of oleum is
[A].
H2SO3
H2SO4
H2S2O7
H2SO7
[A].
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.
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What products do we get on electrolysis of saturated brine using steel cathode and graphite anode in an electrolytic cell ?
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B. Cl2 & H2
C. O2 & H2
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Eutectic reaction for iron-carbon system occurs at a temperature of _______________ °C ?A. 723
B. 959
C. 1147
D. 1493Electric process as compared to wet process (for the manufacture of phosphoric acid)
Question: Electric process as compared to wet process (for the manufacture of phosphoric acid)
[A].can use only high grade phosphate rock. [B].
is used less frequently. [C].
produces a valuable by-product called gypsum. [D].
is weak acid process. Answer: Option B
Explanation:
No answer description available for this question.
A system is said to be isopiestic, if there is no __________ change.
Question: A system is said to be isopiestic, if there is no __________ change.
[A].temperature [B].
pressure [C].
volume [D].
none of these Answer: Option B
Explanation:
No answer description available for this question.
In chemical dehumidification of air
Question: In chemical dehumidification of air
[A].both specific humidity & dry bulb temperature increases. [B].
both specific humidity & dry bulb temperature decreases. [C].
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Explanation:
No answer description available for this question.
Entropy is a/an
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[A].state function [B].
macroscopic property [C].
extensive property [D].
none of these Answer: Option D
Explanation:
No answer description available for this question.