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NCERT BANGLISH-P-BLOCK ELEMENTS -QUESTIONS - D. WRITE IN ONE OR TWO SENTENCE
- Mention the reasons for the stabilisation of lower oxidation state of ...
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- Show the electron accepting property of boron trifluoride by giving an...
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- Give an example of monovalent and trivalent element in group III.
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- Why Boron family has a tendency to form hydrides?
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- Why NH(3) has high boiling point than PH(3)?
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- Which is considered to be "earth's protective umbrella"?
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- Mention any 3 uses of ozone.
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- What are CFC's? Mention its environmental action.
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- What are complex oxides? Give an example.
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- Mention the metal ions present in haemoglobin and myoglobin and state ...
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- What happens when ozone reacts with a) lead sulphide b) potassium ...
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