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NCERT TAMIL- GROUP 1 s - BLOCK ELEMENTS -QUESTIONS (C. WRITE IN ONE OR TWO SENTENCE)
- What are isotopes ?
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- Write a short note on tritium
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- How does deuterium react with metals?
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- How does heavy water react with metals?
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- Mention the uses of deuterium.
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- How is tritium prepared?
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- How do you convert para hydrogen into ortho hydrogen ?
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- How does heavy water react with the following compounds? Mg3N2
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- How is barium peroxide prepared?
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- How is hydrogen peroxide is used to restore the white colour of old pa...
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- Explain the oxidizing property of hydrogen peroxide.
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- Mention two important uses of H2O2
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- Why alkali metals have low melting and boiling points?
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- Why alkali metals have strong electropositive character?
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