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MODERN PUBLICATION-p-BLOCK ELEMENTS-EXERCISE
- Express 2057 in roman numbers.
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- Assertion : HNO3 makes iron passive. Reason : HNO3 forms a protective ...
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- Express 2058 in roman numbers.
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- Assertion : Both rhombic and monoclinic sulphur exist as S8 but oxygen...
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- Assertion : NaCl reacts with concentrated H2SO4 to give colourless fum...
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- Assertion : SF6 cannot be hydrolysed but SF4 can be. Reason : Six F at...
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- Express 2060 in roman numbers.
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- Give the disproportionation reaction of H3PO3.
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- Express 2061 in roman numbers.
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- Name the halogen which forms only one oxoacid and write the formula of...
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- Arrange H2O, H2S and H2Se in decreasing order of acid strength?
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- Why does R3P=O exist but R3N=O does not? (R= alkyl group)
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- Comment on nature of two S-O bond formed in SO2 molecule. Are the two ...
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- Express 2062 in roman numbers.
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- Give hybridization and draw structure of XeF4.
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- Give reasons for the following : SF6 is not readily hydrolysed.
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- Give reasons for the following: Sulphur vapour is paramagnetic.
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- What are the interhalogen compounds ? Why are these more reactive than...
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- Considering the parameters such as bond dissociation enthalpy, electro...
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- Why is helium used in diving apparatus?
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