Chemistry
The acid which produces charcoal from sugar is :
- conc. HNO3
- conc. HCl
- Conc. H2SO4
- conc. H3PO4
Sulphuric Acid
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Answer
Conc. H2SO4
Reason — All carbohydrates react with Conc. H2SO4 immediately to give a black spongy mass of carbon. Carbon obtained in this reaction is very pure and is called as sugar charcoal.
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Related Questions
Dilute H2SO4 and conc. H2SO4 can be distinguished by :
- Copper
- Silver
- Gold
- Platinum
On adding conc. H2SO4 to cane sugar, the colour observed is :
- yellow
- black
- green
- violet
The substance which can be used as drying as well as dehydrating agent is :
- conc. H2SO4
- conc. HNO3
- Conc. HCl
- conc. H2CO3
The compound formed by the oxidation of sulphur by nitric acid is :
P — Sulphuric acid
Q — Nitrogen dioxide
R — Sulphur dioxide
- Only P
- Only Q
- Only R
- Both P and Q