The p-Block Elements questions
1863 published questions with worked solutions.
- Which group is called the "buffer group" of the periodic table?
- Which of the following noble gases is most reactive?
- What is the correct order of occurrence (% by weight) in air of Ne, Ar and Kr? [EAMCET 2006]
- The inert gases producing the maximum number of compounds are [MP PET 2008]
- In clathrates of xenon with water, the nature of bonding between xenon and the water molecules is [MHT-CET 2006]
- Which inert gas has the highest boiling point?
- In Dewar's method of separation of the noble gas mixture from air, the mixture is kept in contact with coconut charcoal at 173...
- The noble gas which is not found in the atmosphere (to any significant extent) is
- In Ramsay and Rayleigh's isolation of noble gases from air, the nitrogen of the air is finally converted into [K CET 2011]
- The noble gas mixture is cooled in a coconut-charcoal bulb at 173 ,K. The gases that are not absorbed are [K CET 2007]
- Helium is used in balloons in place of hydrogen because it is [K CET 2008]
- Xenon hexafluoride reacts with silica to form a xenon compound X. The oxidation state of xenon in X is
- **Assertion:** White phosphorus is more reactive than red phosphorus. **Reason:** Red phosphorus consists of P_4 tetrahedral...
- **Assertion:** Among chalcogens, the tendency towards catenation is maximum for sulphur. **Reason:** The S-S bond dissociation...
- Which of the elements of group VA does not show allotropy?
- The P-P-P bond angle in white phosphorus is
- The basic character of the hydrides of the group V elements decreases in the order
- Which statement is not correct for nitrogen?
- Each of the following is true for white and red phosphorus except that they
- White phosphorus (P_4) does not contain
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