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MODERN PUBLICATION-p-BLOCK ELEMENTS-EXERCISE
- Calcium phosphide gets hydrolysed and gives
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- Which of the following is a coloured gas ?
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- The oxide of nitrogen obtained by dehydration of nitric acid with phos...
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- XeF4 reacts with water at -80^@C to give
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- XeF4 molecule has the shape
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- Ozone gives brown colour with
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- Which compound of nitrogen is formed when CaCN2 reacts with hot wate...
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- Which of the following oxide is strongly acidic ?
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- Which of the following does not have S-S bond?
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- Which of the following is the strongest acid?
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- Among trihalide of nitrogen,which one is least basic? NF3, NCl3, NBr3,...
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- On heating ammonium dichromate, the gas evolved is
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- Gobar gas is made up of-
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- The number of P-O-P bonds in cyclic metaphosphoric acid is
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- The no of S - S bonds in sulphur trioxide trimer (S3O9) is
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- The number of sigma -bonds in P4O10 is
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- Which of the following is not true ?
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- The oxidation state of sulphur in anion SO3^(2-), S2O4^(2-) and S2O6^(...
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- The correct order of acid strength is
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- The chemical mixture that forms gun powder is-
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