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NCERT BANGLISH-P - BLOCK ELEMENTS-SELF EVALUATION A. Choose the correct answer
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- Which shows only -1 oxidation state?
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- One can draw the map of building on a glass plate by
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- Halogens belong to the group number
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- The noble gases are unreactive because they
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- The shape of XeF4 is
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- Which is not known?
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- The lightest gas which is non-inflammable is
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- Which of the following has highest first ionisation energy?
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