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USHA PUBLICATION-P-BLOCK ELEMENTS( GR-15,GR16,GR17,GR18)-EXERCISE
- Draw the molecular structure of oleum.
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- Write the anomalous properties of fluorine.
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- Which halogen can not form +ve ion ?
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- Which gas is responsible for absorbing U.V. radiations emitted by sun ...
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- Write all the members of oxygen family.
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- Which among the oxygen family is radioactive?
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- Which halogen exists in liquid state at room temperature ?
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- HI is an oxidising or reducing agent ?
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- Which halogen is radioactive?
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- Which noble gas is called as Lazy gas?
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- Which element directly combines with xenon forming compounds?
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- Between F2 and Cl2 which is more reactive?
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- Write one oxyacid of chlorine.
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- In the reaction H2SO4+2HIto2H2O+SO2+I2 H2SO4 acts as ...
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- Arrange the halogen acids in increasing order of their acidic strength...
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- Which halogen will produce O2 and O3 on passing through water ?
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- What is called fourth state of matter ?
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- Arrange the noble gases in increasing order of the case liquification.
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- Name two scientists associated with discovery of noble gasses.
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- What is the bond angle in SO2 molecule ?
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