The function of Fe(OH)3 in the contact process is
to detect colloidal impurity
to remove moisture
to remove dust particles
to remove arsenic impurity
The function of Fe(OH)3 in the contact process is
The inert gas abundantly found in atmosphere is |
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Helium is used in balloons in place of hydrogen because it is |
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When Cl2 gas reacts with hot and concentrated sodium hydroxide solution, the oxidation number of chlorine changes from |
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Which one of the following orders correctly represents the increasing acid strengths of the given acids? |
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Which one of the following is an amphoteric oxide? |
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Which is most easily liquefiable rare gas? |
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The number of hydrogen atom(s) attached to phosphorus atom in hypophosphorous acid is |
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Which of the following reactions of xenon compounds is not feasible? |
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The percentage of p–character in the orbitals forming P – P bonds in P4 is |
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Which is the strongest acid in the following? |
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