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P - Block Elements Test - 114

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P - Block Elements Test - 114
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  • Question 1
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    When SO2 is passed through acidified K2Cr2O7 solution
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  • Question 2
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    Which of the following is oxidized by SO2
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  • Question 3
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    A salt of sulphurous acid is called
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    The final acid obtained during the manufacture of H2SO4 by contact process
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    Which compound acts as an oxidizing as well as reducing agent
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    Bleaching action of SO2 is due to
  • Question 7
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    About H2SO4 which is incorrect
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  • Question 10
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    When conc. H2SO4 comes in contact with sugar it becomes black due to
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