Sulphur dioxide gas is also used in some sugar industries to manufacture sugar. What is the property of sulphur dioxide applicable in this case?

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Solution

$C o l o u r e d (m o l l a s e s) S O_{2} \to l i g h t e n (m o l l a s e s) .$
The reductive property of $S O_{2}$ is used in sugar industries,
it is used to remove colour impurities and lighten the coloured molasses.

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Q. Sulphur bums in oxygen to form sulphur dioxide. The properties of sulphur dioxide are:

Q. (a) Name the catalyst which helps in the conversion of sulphur dioxide to sulphur trioxide in step C.
(b) In the Contact process for the manufacture of the sulphuric acid, sulphur trioxide is not converted to sulphuric acid by reacting it with water. Instead, a two-steps procedure is used. Write the equations for the two steps involved in D.
(c) What type of substance will liberate sulphur dioxide from sodium sulphite to step E?
(d) Write the equation for the reaction by which sulphur dioxide is converted to sodium sulphite in step F.
[5 MARKS]

Q. a) Write the chemical equation to prepare sulphur dioxide from industrial method?
b) What happens when

S O_{2}

is pass through water?
c) Write reaction showing reducing property of sulphur dioxide?
d) Draw a labeled diagram showing ring structure of rhombic sulphur?

(i) Name the catalyst which helps in the conversion of sulphur dioxide to sulphur trioxide in step C.
(ii) In the contact process for the manufacture of sulphuric acid, sulphur trioxide is not converted to sulphuric acid by reacting it with water. Instead a two-step procedure is used. Write the equations for the two step involved in D.
(iii) What type of substance will liberate sulphur dioxide from sodium sulphite in step E?
(iv) Write the equation for the reaction by which sulphur dioxide is converted to sodium sulphite in step F?

In the manufacture of Sulphuric acid ,the key step is the catalytic oxidation of sulphur dioxide with Oxygen to give:

Sulphur dioxide gas is also used in some sugar industries to manufacture sugar. What is the property of sulphur dioxide applicable in this case?

Coloured(mollases)SO2→lighten(mollases).The reductive property of SO2 is used in sugar industries,it is used to remove colour impurities and lighten the coloured molasses.

$C o l o u r e d (m o l l a s e s) S O_{2} \to l i g h t e n (m o l l a s e s) .$
The reductive property of $S O_{2}$ is used in sugar industries,
it is used to remove colour impurities and lighten the coloured molasses.