s block elements, Chemistry

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why are salts of alkali metals diamagnetic

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The electronic configuration of silver atom in ground state, The electronic...

The electronic configuration of silver atom in ground state is: (1) [ Kr]3 d 10 4 s 1                             (2) [Xe]4f 14 5d 10 6s 1       (3) [ Kr]4d 10 5 s

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Physical properties Alkyl Halides (i) CH 3 F,CH 3 Cl, CH 3 Br and C 2 H 5 Cl are gases at room temperature. The alkyl halides up to be colourless liquids whereas higher members

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Molten sodium chloride conducts electricity due to the presence of: (1) Free electrons (2) Free ions (3) Free molecules (4) Atoms of sodium and chlorine Ans:  Free

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Which of the following statements does not form part of Bohr's model of the hydrogen atom: (1) Energy of the electrons in the orbit is quantized (2) The electron in the orbi

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The ratio of area covered by second orbital to the first orbital is: (1) 1 : 2  (2) 1 : 16       (3) 8 : 1           (4) 16 : 1 Ans:  16 : 1

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Uses of Sucrose, Cane-sugar (1) Sucrose is used as a sweetening substance for several jams, syrups sweets, food preparations etc. (2) Sucrose is used in the making of sucros

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