Name the most electronegative element of Periodic table?
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Atomic mass is equal to the sum of ____
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Vertical columns are called as –
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Chalcogens are ?
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What is the special name given to the 17th group?
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Which group was added in Mendleev’s periodic table?
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The number of electrons in valence shell is equal to
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Which one is the most acidic among these?
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In the modern periodic table, the number of period of the element is the same as
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Which of the following statements is incorrect?
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Two different beakers contain M1-O-H, and M2-O-H solutions separately. Find the nature of the two solutions if the electronegativity of M1 = 3.4, M2 = 1.2, O = 3.5, H = 2.1
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The correct order of electronegativity is
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