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Why is a cation so named?...

Why is a cation so named?

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When electric current is passed through the solution of a salt like sodium chloride (NaCl), the positive ion
.`(Na^(+))` migrates towards cathode (negative electrode). It is therefore, called cation. Please remember that
.Positive ion migrating towards cathode on passing electric current is known as cation.
Negative ion migrating towards anode on passing electric current is known as anion.
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DINESH PUBLICATION-ATOMS AND MOLECULES-VERY SHORT ANSWER QUESTIONS
  1. What is the valency of calcium in CaCO(3)?

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  2. What happens to an element A if its atom gains two electrons?

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  3. Why is a cation so named?

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  4. An element Z forms an oxide with formula Z,O3. What is its valency?

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  5. The valency of an element A is 4. Write the formula of its oxide.

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  6. An element X has valency 3 while the element Y has valency 2. Write th...

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  7. Formula of the carbonate of a metal M is M(2)CO(3). Write the fomula o...

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  8. What do you understand from the statement "relative atomic mass of sul...

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  9. Calculate the formula unit mass of CaCl(2).

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  10. Which of the following represents the correct chemical formula? (i) ...

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  11. Sample A contains one gram molecules of oxygen molecules and sample B ...

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  12. Gram molecular mass of ammonia (NH(3)) is 17 g Is it correct to regard...

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  13. Give one example each of polyatomic element and polyatomic ion

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  14. Name the element which is used as a reterence for the atomic masses of...

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  15. Four samples of water [H(2)O] are collected from different sources, Ea...

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  16. Identify the cations and anions in the following compounds: (a)CH(3)...

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  17. Classify the following based on atomicity (a) O(3) (b)P(4) (c )Sg.

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  18. Which of the following symbols of elements are incorrect? Write correc...

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  19. Give the example of trivalent cation and monovalent anion. Write the f...

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  20. Name the compound Al(2)(SO(4))(3), and mention the ions present in it.

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