Bromine content in sea water may be around _________________ ppm?
Bromine content in sea water may be around _________________ ppm?
A. 70
B. 640
C. 1875
D. 2500
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Enzymes are organic catalysts used in the __________ reactions.
Question: Enzymes are organic catalysts used in the __________ reactions.
[A].chemical [B].
biochemical [C].
photochemical [D].
electrochemical Answer: Option B
Explanation:
No answer description available for this question.
The combustion reaction, C + O2 = CO2, is__________________?
The combustion reaction, C + O2 = CO2, is__________________?A. Exothermic
B. Endothermic
C. Autocatalytic
D. None of theseMargarine is a/an
Question: Margarine is a/an
[A].fat [B].
explosive [C].
plasticiser [D].
rocket propellant Answer: Option A
Explanation:
No answer description available for this question.
Dacron (or terylene) fibres as compared to nylon’fibres have
Question: Dacron (or terylene) fibres as compared to nylon’fibres have
[A].better heat & acid resistant properties. [B].
poorer resistance to alkalis. [C].
poorer dyeability. [D].
all (a), (b) and (c). Answer: Option D
Explanation:
No answer description available for this question.
Double Contact Double Absorption (DCDA) process is the most recent process for the manufacture of
Question: Double Contact Double Absorption (DCDA) process is the most recent process for the manufacture of
[A].nitric acid [B].
sulphuric acid [C].
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hydrochloric acid Answer: Option B
Explanation:
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Cation exchanger is regenerated usually with_________________________?
Cation exchanger is regenerated usually with_________________________?A. NaOH
B. H2SO4
C. Hydrazine
D. Alum solution