The p-Block Elements questions
1863 published questions with worked solutions.
- H₃BO₃ is:
- The oxo-acid of anhydride P₂O₅ is:
- The oxoacid of SO₂ is:
- The increasing order of acid strength HClO₄, HClO₃, HClO₂, HClO is:
- The anhydride of HNO₃ is:
- Sulphurous acid can be used as:
- Bleaching action of chlorine in presence of moisture is due to:
- Ozone tarnishes/tails mercury. The reaction is ..... of Hg.
- The reaction of white phosphorus with aqueous NaOH gives phosphine along with another phosphorus-containing compound. The...
- The best oxidising agent of the oxygen family is:
- Carbon reacts with oxygen to form two oxides, CO and CO_2. This is because:
- The oxidation state of +3 for phosphorus is in:
- In which case +1 oxidation state is stable than +3?
- In presence of moisture SO_2 can:
- The halogen that shows same oxidation state in all its compounds with other elements is:
- Fluorine exhibits only −1 oxidation state, while iodine exhibits oxidation states of −1, +1, +3, +5 and +7. This is due to:
- What is the product of the reaction of H_2O_2 WITH Cl_2? [OJEE 2003]
- The pH of a solution of H_2O_2 is 6.0. Some chloride gas is bubbled into this solution. Which of the following is correct?...
- Which one of the following is a true peroxide?
- Polyphosphates are used as water softening agents because they
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