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CBSE CLASS 12 -LAKSHAY PROGRAMME
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Q1. A change in which a substance undergoes a change in its physical properties is called a ___________ change.
Q2. A physical change is generally ___________.
Q3. A change in which a substance undergoes a change in its chemical properties is called a ___________ change.
Q4. Magnesium react with oxygen to form ___________ oxide.
Q5. The reactants are written on the ___________.
Q6. Zinc + Sulphuric acid → Zinc sulphate + ___________.
Q7. A reaction in which two or more substances combine together to form a single product is known as a ___________ reaction.
Q8. If a substance gains oxygen or loses hydrogen in a reaction, the substance is said to be oxidised and the process is known as ___________.
Q9. In redox rection, Oxidation and ___________ reaction taking place simultaneously.
Q10. Two common effects of oxidation reactions observed in daily life are corrosion of metals and ___________ of food.
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