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MARVEL PUBLICATION-S BLOCK ELEMENTS -TEST YOUR GRASP
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- The elements of group 1 are called alkali metals because
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- "Electron" is an alloy of
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- Sodium burns in dry air to give
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- Select odd pair of name of chemical and its chemical composition.
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- The alkali metal used in photoelectric cell is
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- Which of the following if good source of potassium ?
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- Mg burns in air to give
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- Beryllium and aluminium exhibit many properties which are similar . Bu...
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- Which of the following is not a compound of calcium ?
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- Mark the compound which does not contain calcium carbonate ?
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