7 Questions
Why are food cans coated with tin and not with zinc?
Zinc is more reactive than tin.
Which of the following pairs will give displacement reactions?
AgNO3 solution and copper metal
Which method is suitable for preventing an iron frying pan from rusting?
Applying a coating of zinc
An element reacts with oxygen to give a compound with a high melting point and is soluble in water. The element is likely to be:
Calcium
How could you use a hammer, a battery, a bulb, wires, and a switch to distinguish between samples of metals and nonmetals?
Connect the sample to the circuit and observe if the bulb lights up.
In a population of an asexually reproducing species, if trait A exists in 10% and trait B exists in 60%, which trait is likely to have arisen earlier?
Trait B
How do variations in a species promote survival?
Variations help in the survival of the species by enabling some individuals to adapt to drastic environmental changes
Test your knowledge of displacement reactions and preventing rust with this Class X quiz. Answer questions like which pairs will give displacement reactions and which method is suitable for preventing rusting of an iron frying pan. Perfect for science enthusiasts and students preparing for exams.
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