Uses of Sulphur Dioxide

Q. In sugar industry, is used to remove colouring matter from sugar.

1. sulphur dioxide
2. baking soda
3. chlorine

Q. Sulphur dioxide is used to prevent the decolourization of dried fruits.

1. True
2. False

Q.

What is the purest form of natural water?

Q.

Why sulphur dioxide is used for preservative gas?

Q. The colouring matter in the sugar is removed by _______.

1. chlorine
2. sodium chloride
3. sodium bicarbonate
4. sulphur dioxide

Q. ___ is used to remove colouring matter from sugar in the sugar industry.

Q. Food is preserved mostly with the help of solution made up of ________ .

1. sulphur dioxide
2. ammonium nitrate
3. ammonium phosphate
4. ammonium sulphate

Q. Which of the following can be used to synthesize $S{O}_2$?

1. $HgS+O_2$
2. $ZnS+O_2$
3. $Cu+H_{2}S$
4. $N{a}_{2}S{O}_3+HCl$

Q.

Which among $\mathrm{Cu}$, $\mathrm{Fe}$, $\mathrm{Mg}$, $\mathrm{Na}$ and $\mathrm{Zn}$ does not react with a dilute $\mathrm{HCl}$ solution ?

Q.

if we eat our without washing our hands

but by a spoon then the microorganisms will not transfer to our food?

Q. Which of the following is used as a preservative for dried apricots?

1. Carbon dioxide
2. Chlorine
3. Sulphur dioxide
4. Sodium bicarbonate