alleryStart learning →After a candle is put out, liquid wax sets. What is reversed?
AAll the wax combustion
BChemical burning of the wick
CFormation of flame gases
DOnly melting of unburnt wax
Answer & Solution
Correct answer: D. Only melting of unburnt wax
Solidifying the remaining wax reverses its melting, while wax already consumed in combustion is not restored.
Keep practising Physical and Chemical Changes
Browse all Physical and Chemical Changes questions for ICSE Class 8, or explore more Chemistry topics.
Related questions
Rust is scraped off iron. Has scraping reversed rust formation?Water is split into hydrogen and oxygen. Why is this chemical?A pendulum repeats its motion at regular intervals. It is?Iron becomes magnetised without reacting. What changes?Compare an egg cracking and its contents rotting. They are?Why is milk becoming curd a chemical change?A candle's wax melts and its vapour burns. These changes are?Crystal shape changes, but composition does not. The change is?