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Morpholine: Quiz


Question 1: Its pH adjusting qualities then become distributed throughout the steam plant to provide ________ protection.

Question 2: Morpholine is often used in conjunction with low concentrations of hydrazine or ________ to provide a comprehensive all-volatile treatment chemistry for corrosion protection for the steam systems of such plants.

Question 3: This heterocycle, pictured at right, features both ________ and ether functional groups.

Question 4: For example, when morpholine is neutralized by ________, one obtains the salt morpholinium chloride.
Hydrochloric acidEthanolHydrogen chlorideSulfuric acid

Question 5: For example, it is a building block in the preparation of the antibiotic ________ and the anticancer agent gefitinib (Iressa).

Question 6: Morpholine is a common additive, in ppm ________, for pH adjustment in both fossil fuel and nuclear power plant steam systems.
SolventConcentrationTotal dissolved solidsSolubility

Question 7: Morpholine decomposes reasonably slowly in the absence of ________ even at the high temperatures and pressures in these steam systems.

Question 8: Morpholine is an organic ________ having the chemical formula O(CH2CH2)2NH.
ChemistryChemical compoundInorganic chemistryElectrochemistry

Question 9: Morpholine may be produced by the dehydration of diethanolamine with ________:[1]
Acetic acidAmmoniaSulfuric acidHydrochloric acid

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