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प्रश्न
Wood to sawdust:______:: Wood to Ash: Chemical change
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उत्तर
Wood to sawdust: Physical change. :: Wood to Ash: Chemical change
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संबंधित प्रश्न
Classify the following as chemical or physical change:
Melting of butter in a pan
Fill in the blank.
A new substance is formed in a ............... change.
State whether the following is physical or chemical changes.
heating a mixture of iron filings and sulphur—
State whether the following is physical or chemical changes.
photosynthesis —
True or false
Is the process of digestion a physical change?
Classify the following as physical or chemical change :
Formation of curd from milk
State whether the following statement is true or false. If false write the correct statement.
Melting of ice is an exothermic, irreversible chemical change.
Give a reason why – Heating a platinum wire is a reversible change but, heating a magnesium wire is an irreversible change.
Natural changes which take place in nature on their own, are beyond the control of human being.
Paheli’s mother made a concentrated sugar syrup by dissolving sugar in hot water. On cooling, crystals of sugar got separated. This indicates a –
