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Which of the following represents the co...

Which of the following represents the correct chemical formula?
`(i) NaSO_(4), (ii) CaPO_(4) (iii) ZnS (iv) AlSO_(4)`

Text Solution

Verified by Experts

The formula (c) represents the correct formula. Both the ions are divalent i.e. `Zn^(2+) and S^(2-)`. The name of the Compound is zinc sulphide.
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DINESH PUBLICATION-ATOMS AND MOLECULES-VERY SHORT ANSWER QUESTIONS
  1. What do you understand from the statement "relative atomic mass of sul...

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

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

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

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

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

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

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

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

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

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

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

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

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  14. Write the formulae and the names of the ions formed by the combination...

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  15. Name a non-metal which is tetratomic.

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  16. Name the cation and anion which constirute the molecule of magnesium o...

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  17. An element has valency 3. Write the formula of its oxide.

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  18. An element has valency 3. Write the formula of its oxide.

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  19. What do you understand by 1 amu?

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  20. What is meant by atomicity ? Explain with two examples.

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