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NCERT TELUGU- GROUP 1 s - BLOCK ELEMENTS -QUESTIONS (A. CHOOSE THE BEST ANSWER)
- Atoms of the same element having same atomic number but different mass...
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- Deuterium nucleus consists of
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- Deuterium with oxygen gives
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- Tritium is prepared by bombarding lithium with
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- At room temperature ordinary hydrogen consists of about
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- D2O reacts with P2O5 and gives
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- is used for the preparation of deuterium
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- H(2)O(2) is powerful agent
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- is used as a propellant in nucleus
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- The oxidation state of alkali metals is
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- When heated in bunsen flame, lithium gives colour
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- On moving down the group, density of the alkali metals
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- If the element can lose an electron readily, they are said to be
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