__________ with sodium hydroxide and/or sodium peroxide is utilized to produce the high pH that is crucial to produce the active perhydroxyl ion, HOO–.

__________ with sodium hydroxide and/or sodium peroxide is utilized t

1.	__________ with sodium hydroxide and/or sodium peroxide is utilized to produce the high pH that is crucial to produce the active perhydroxyl ion, HOO–.
A.	Hydrogen dioxide
B.	Hydrogen peroxide
C.	Hydrogen silicate
D.	Hydrogen fluoride
Answer» D. Hydrogen fluoride

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Pine and fir are difficult to brighten. Colour reduction occurs by altering __________ groups, the pulp is sometimes subsequently treated with SO2 to neutralize OH– and reduce any residual peroxide.
__________ with sodium hydroxide and/or sodium peroxide is utilized to produce the high pH that is crucial to produce the active perhydroxyl ion, HOO–.
__________ (5% on wood) is used usually after the addition of magnesium ion. The mechanism for inactivating the ions by __________ precipitating the ions, but, strictly speaking, it is not a chelating agent.
Chelating agents, such as __________ have the added gain of preventing pulp dis-coloration by binding together with ferric ion that could otherwise form a colored complex with the phenolic lignin structure.
In hydrosufite bleching Zn+2SO2andrarr; __________
___________WITH_SODIUM_HYDROXIDE_AND/OR_SODIUM_PEROXIDE_IS_UTILIZED_TO_PRODUCE_THE_HIGH_PH_THAT_IS_CRUCIAL_TO_PRODUCE_THE_ACTIVE_PERHYDROXYL_ION,_HOO‚ÄÖ√Ñ√∂‚ÀÖ√Ë‚ÀÖ¬®.?$#
Pine_and_fir_are_difficult_to_brighten._Colour_reduction_occurs_by_altering____________groups,_the_pulp_is_sometimes_subsequently_treated_with_SO2_to_neutralize_OH‚Äö√Ñ√∂‚àö√ë‚àö¬®_and_reduce_any_residual_peroxide.$#
__________ (5% on wood) is used usually after the addition of magnesium ion. The mechanism for inactivating the ions by __________ precipitating the ions, but, strictly speaking, it is not a chelating agent?
Chelating agents, such as __________ have the added gain of preventing pulp dis-coloration by binding together with ferric ion that could otherwise form a colored complex with the phenolic lignin structure.
In hydrosufite bleching Zn+2SO2andrarr; __________

__________ with sodium hydroxide and/or sodium peroxide is utilized to produce the high pH that is crucial to produce the active perhydroxyl ion, HOO–.

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