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MODERN PUBLICATION-GROUP 18 ELEMENTS-EXERCISE
- Comment on risk of indiscriminate use of drugs and antibiotics.
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- What is molecular geometry of XeO3 ?
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- Which of the following noble gases is the least polarisable ?
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- Which noble gas is not easily to liquefy
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- Which gas can be collected over water?
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- Which noble gas is called as Lazy gas?
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- Which inert gas is not found in atmosphere ?
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- Expalin with reason : Electronegativity values of inert gases are zero...
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- What is average life and is percentage of argon in air ?
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- What are the sources of rare gases ?
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- Noble gases are:
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- Noble gas atoms have very high ionization energles. Explain.
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- What is the shape of XeF2 molecule ?
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- The shape and hybridisation of XeF4 is
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- Mention two uses of Neon gas.
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- How XeF2 is prepared?
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- How XeF4 is prepared ?
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- Write some uses of arogon.
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- Xenon forms fluoride easily. Explain.
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- Write four characteristic properties of noble gases.
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