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Question
The electronic configuration of a hydride ion (H–) is like the electronic configuration of the atom of which element? [1] OR Draw…
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Show the conventional representation of the H2O molecule by ‘dash’ sign
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In which group of the long periodic table, elements of all three physical states – gaseous, liquid and solid are present? [1]…
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Arrange F, I, Br, CI in decreasing order of electronegativity
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Match the Right column with the Left column : [1 × 4 = 4] Left Column Right Column 2.11.1 Acetic acid (a)…
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‘Kilowatt-hour’ is the unit of which physical quantity?
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What is the unit of electrical conductance? [1] OR What are the constituents of fuse wire? [1]
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If the refractive indices of a medium for red and blue colours of light are μr and μb respectively, which one is…
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Which type of mirror is used in the headlight of a motor car?
