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R G PUBLICATION-THE p-BLOCK ELEMENTS-EXERCISE
- An anti-chlor agent is
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- The final product obtained during the manu-facture of H2SO4 by contact...
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- Condition for maximum yield of SO2 gas from oxidation of SO3 gas is.
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- Oxidising action increase in the following order in halogen family
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- Which of the following pairs is not correct
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- Fluorine reacts with water to give
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- The highest boiling point liquid is
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- Oxide of fluorine is called
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- Why the stability of higher oxidation state of the 14th group elements...
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- BiH3 is the strongest reducing reducing agent of group 15 elements. Wh...
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- PH3 has lower boiling point than NH3. Why?
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- What happens when Barium azide is heated?
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- A deep blue colour is formed when CuSO4 solu-tion is treated with ammo...
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- Which forms of oxides of nitrogen are para-magnetic?
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- Aluminium is not dissolved in concentrated HNO3 solution. Why?
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- In the brown ring test (for identification of NO3). Write the formula ...
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- Why white phosphorus is less stable than red phosphorus?
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- Name the gas which is used as smoke screen?
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- Bond angle in PH4^+ is higher than that is PH3.
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- In PCl5 the two axial bonds are longer than equitorial bonds why?
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