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प्रश्न
Multiple choice:
A reaction of a type: AB + CD → AD + CD, involves
पर्याय
No chemical change
Decomposition of AB and CD
Exchange of ions of AB and CD
Combination of AB and CD
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उत्तर
Exchange of ions of AB and CD
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संबंधित प्रश्न
Write the missing reactants and products and balance the equations.
NaOH + ............... `→` NaCI + ...................
| Reactants | Products | Type of chemical reaction |
| BaCl2(aq) + ZnSO4(aq) | H2CO3(aq) | Displacement |
| 2AgCl(s) | FeSO4(aq) + Cu(s) | Combination |
| CuSO4(aq) + Fe(s) | BaSO4↓ + ZnCl2(aq) | Decomposition |
| H2O(l) + CO2(g) | 2Ag(s) + Cl2(g) | Double displacement |
Multiple choice:
Thermal decomposition of sodium carbonate will produce
What do you observe? When
Water is added to the quick lime.
State the following reaction represent oxidation or reduction.
\[\ce{Cu++->Cu}\]
Name the solid residual product formed reaction and state its colour during – thermal decomposition of the following substance.
Lead nitrate.
Higher order Thinking question
Peeled and unpeeled banana does not look the same. Does that mean peeling banana is a chemical change?
Photosynthesis is a chemical reaction that takes place in the presence of ______.
________ is a chemical substance which alters the speed of a chemical reaction.
Photosynthesis is a chemical charge. Justify your answer.
