Advertisements
Advertisements
प्रश्न
Write true or false
Burning of paper and formation of curd are reversible changes.
विकल्प
True
False
उत्तर
False.
Burning of paper and formation of curd are irreversible changes.
APPEARS IN
संबंधित प्रश्न
Classify the following as chemical or physical change:
Burning of paper and wood
Fill in the blank
Chemical change occurs as a result of __________ between two substances.
State whether the following is physical or chemical changes.
Slaking of lime —
Tick (√) the correct alternative from the choice given for the following statement
Which one of the following is volatile in nature ?
Which of the following are physical changes and which are chemical changes?
Burning of candle wax, Melting of candle wax, Mixing of iron filings and sand, Burning of wood, Breaking a piece of chalk, Burning a piece of paper, Cutting a piece of paper.
Differentiate between a physical change and a chemical change with reference to – Energy change taking place during the respective change.
Wood to sawdust:______:: Wood to Ash: Chemical change
______ is the Universal Solvent.
A physical change is generally____________.
Mention some of the different conditions needed for chemical changes to occur.
