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Atoms, Molecule...

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  • Question 1
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    Which of the following elements has atomicity 2?

  • Question 2
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    What kind of configuration does every atom want to achieve?

  • Question 3
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    Which of the following rules is observed while writing a chemical formula?

  • Question 4
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    The positive and negative ions present in the compound Pb3(PO4)2 are

  • Question 5
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    Which of the following ions is mono-atomic?

  • Question 6
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    What are the respective numbers of carbon, hydrogen, and oxygen atoms in a molecule of glucose?

  • Question 7
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    A chemical compound is composed of

  • Question 8
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    Which of the following configurations is most stable?

  • Question 9
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    What is the electronic configuration of sulphur after it gains two electrons to form sulphide (S–2) ion?

  • Question 10
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    Use the following information to answer the next question.

    Four boxes A, B, C, and D contain the number atoms which are present in one molecule each of sugar (C12H22O11), carbon dioxide (CO2), sodium carbonate (Na2CO3), and glucose (C6H12O6) respectively.

    If the boxes are arranged in the increasing order of the number of atoms they contain, then the correct order will be

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