s block elements, Chemistry

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why are salts of alkali metals diamagnetic

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Which bond is more strong covalent or ionic .and why? , Generally ionic bon...

Generally ionic bonds are stronger than covalent bonds. This is because in ionic bonds, electrostatic forces of attractin are involved. The positive ion (cation) and the negative

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Alkanes have single bond, but why are they less reactive as compared to alkenes or alkynes which have respectively double or triple bonds ? Alkanes have only single sigma bond w

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The ratio between the neutrons in C  and  Si  with respect to atomic masses 12 and 28 is: (1) 2 : 3  (2) 3 : 2       (3) 3 : 7             (4) 7 : 3 Ans: 3 : 7

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