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NARAYNA-S-BLOCK ELEMENTS-LEVEL-II(C.W)
- Acetylene can be prepared from
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- Serveral blocks of magnesium are fixed to the bottom of a ship to
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- Which of the following contains two alkaline earth metals?
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- A mixture of Be(OH)(2) and Fe(OH)(3) can be separtated easily by treat...
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- Oxygen evolves on heating :
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- A solution of MgCl(2) in water has pH
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- In a reaction, sodium is heated with BeCl(2), in this reaction, sodium...
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- Which of the following is a good dehydrating agent.
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- Maximum heat of formations is shown by
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- Which of the following changes is not realised in the laboratory?
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- Which of the following is a covalent compound ?
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- The number of water molecules in hydrated beryllium salt never exceeds
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- Beryllium compopunds are largely conalent because
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- Which of the following will have highest hydration energy ?
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- Which of the following fumes in moisture in air ?
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- Which of the following is highly exothermic in water.
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- Which of the following is a covalent solid ? (i) AF(3) (ii) Acl(...
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- Passivity is exhibited by i) Be ii)Mgiii)Aliv)B
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- The alkaline reath metal ion that has least electrical conducitivty in...
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- Both Be & Al reacts with sodium hydroxide and liberates
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