QQuestion
A non-metal which reacts with concentrated sulphuric acid to form two gases which turn lime water milky is …………… .
(a) Sulphur
(b) Carbon
(c) Oxygen
(d) Nitrogen
✓Answer
(b) Carbon
Explanation –
Carbon (a non-metal) reacts with hot concentrated sulphuric acid to form two gases — carbon dioxide (CO2) and sulphur dioxide (SO2). Both these gases turn lime water milky.
\mathrm{C} + 2\mathrm{H_2SO_4 [conc.]} \rightarrow \mathrm{CO_2} + 2\mathrm{H_2O} + 2\mathrm{SO_2}Related Questions
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