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USHA PUBLICATION-P-BLOCK ELEMENTS( GR-15,GR16,GR17,GR18)-EXERCISE
- Why halogens are highly reactive?
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- What happens when SO2 is passed through chlorine water ?
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- What is the 1st noble gas element discovered in earth?
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- Why does SO2 act as bleaching agent only in presence of moisture?
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- OF2 is called as oxygen difluoride and not fluorine oxide. Why?
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- Which noble gas has less than 8 electrons in its valency shell?
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- The inert gas used in beacon lights is
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- Randon was discovered by
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- Which noble gas compound is highly explosive?
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- Arrange as indicated - H2O , H2S , H2Se , H2Te ( increasing bond ang...
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- In SO2 an oxidizing agent or reducing agent or both?
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- Which oxide of oxygen family is amphoteric in nature?
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- What is the highest oxidation state of oxygen family ?
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- What is oil of vitriol ?
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- Write two oxoacid of sulphur.
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- The first noble gas compound was prepared by
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- noble gas can't be absorbed by coconut charcoal .
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- Radon is formed by disintegration of .
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- Which of the halogens forms hydrogen bond ?
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- Which halogen is solid at the room temperature ?
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