Activated Charcoal & Uses

Q. Sugar charcoal can be obtained by treating sugar$\left(C_{12}{H}_{22}{O}_{11}\right)$ with .

1. $\mathrm{conc}.\mathrm{HCl}$
2. $\mathrm{conc}.H_2{\mathrm{SO}}_4$
3. $\mathrm{conc}.{\mathrm{HNO}}_3$

Q.

Which of the following is/are uses of activated charcoal?

1. Decolourisation of solutions

2. Purification of sugar

3. Removal of taste

4. All of the above

Q. charcoal is used in gas masks.

1. Activated
2. Sugar
3. Wood

Q. Which of the following is used as an anti -knocking compound?

1. TEL
2. $C_2{H}_{5}OH$
3. Glyoxal
4. Freon

Q. Choose the correct pair of carbon compounds and their usage.

1. Lampblack
2. Activated charcoal
3. Ivory black
4. Paints
5. Gas masks
6. Shoe polish

Q. One of the nitrogenous liquid base, that is recovered from coal tar, is:

1. histidine
2. pyridine
3. sulphide
4. ammonia