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What is the formula of formaidehyde-bisulfite ?

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What is the formula of formaidehyde-bisulfite ?

(a) HOCH2SO3Na

(b) CH3SO3Na

(c) HOCH2SO4

(d) HOCH3SO2Na

I have been asked this question by my school principal while I was bunking the class.

Origin of the question is Technical Preparations topic in chapter Sulfonation and Sulfation of Unit Processes

1 Answer

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Right answer is (a) HOCH2SO3Na

Easiest explanation: formaidehyde-bisulfite also called as “sodium hydroxymethanesulfonate” also, has the following formula HOCH2SO3Na.

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