CBS11•MCQs
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Who observed regularities in the characteristic X-ray spectra of elements, leading to the Modern Periodic Law?
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View all →Oxides formed by elements on the extreme left of a period are generally:
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Oxides formed by elements on the extreme right of a period are generally:
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Oxides of elements in the centre of a period, such as Al₂O₃ or As₂O₃, are generally:
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How does Na₂O react with water to demonstrate its basic nature?
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How does Cl₂O₇ react with water to demonstrate its acidic nature?
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In the modern periodic table, the period indicates the value of:
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Which statement about the p-block in the modern periodic table is correct?
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Which statement about the d-block in the modern periodic table is incorrect?
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View all →Oxides formed by elements on the extreme left of a period are generally:
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Oxides formed by elements on the extreme right of a period are generally:
CBS11
Oxides of elements in the centre of a period, such as Al₂O₃ or As₂O₃, are generally:
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How does Na₂O react with water to demonstrate its basic nature?
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How does Cl₂O₇ react with water to demonstrate its acidic nature?
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In the modern periodic table, the period indicates the value of:
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