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Chemistry – After SEE – LS

Valency and Molecular Formula

Dear ! This is Valency and Molecular Formula  Quiz and it contains 14 questions.

Happy Learning!

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1. Which scientist has no contribution to periodic table ?

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2. Most abundant element on earth crust

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3. Molecular formula of carbonic acid is

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4. ‘d’ subshell can accommodate maximum number of electron

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5. ‘O’ group element has valency

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6. Latin name of tungsten is

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7. modern periodic law is based on

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8. According to modern concept atom is

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9. Maximum number of electrons in an atom is given by rule

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10. Which of the following has covalent bond?₂₂

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11. Triple bond is present in

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12. An atom has atomic number 11 to which periodic it lies ?

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13. who discovered proton?

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14. A subatomic particle is represented by eˣ, x is

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