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Rohan observed that if a small piece of ...

Rohan observed that if a small piece of sodium is added to water it catches fire whereas a piece of calcium added to the water it does not catch fire. Can you explain his observations with the help of the chemical equations?

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To explain Rohan's observations regarding the reactions of sodium and calcium with water, we can break down the explanation into clear steps along with the relevant chemical equations. ### Step-by-Step Solution: 1. **Understanding the Reactivity of Sodium and Calcium:** - Sodium (Na) is a highly reactive alkali metal, while calcium (Ca) is a less reactive alkaline earth metal. Both metals react with water, but the intensity of their reactions differs. 2. **Reaction of Sodium with Water:** ...
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Knowledge Check

  • Sodium when dropped in water catches fire because

    A
    it has higher atomic mass
    B
    it is a metal
    C
    it is highly electropositive is nature
    D
    the hydrogen gas evolved in the reaction is combustible in nature.

  • When a small piece of beryllium was added to water taken in a beaker, what will you observe?

    A
    Vigorous chemical reaction occurs with evolution of a gas.
    B
    Formation of precipitate is seen .
    C
    Colour of solution turns black.
    D
    No reaction occurs.

  • When sodium is added in scanty water, it cathes fire. In this process which one of the following burns ?

    A
    `Na`
    B
    `H_(2)O`
    C
    `CO`
    D
    `H_(2)`

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