The p-Block Elements questions
1863 published questions with worked solutions.
- In polythionic acid, H_2S_xO_6(x = 3 to 5) the oxidation state(s) of sulphur is/are :
- In stratosphere most of the ozone formation is assisted by :
- Which one of the following is formed (mainly) when red phosphorus is heated in a sealed tube at 803 K ?
- The number of halogen(/s) forming halic (V) acid is___________.
- Given below are two statements: Statement I : and forms of sulphur can change reversibly between themselves with slow heating or...
- The correct statement about B_2H_6 is:
- Given below are two statements : Statement I : Chlorofluoro carbons breakdown by radiation in the visible energy region and...
- Which one of the following compounds of Group-14 elements is not known?
- The number of non-ionisable hydrogen atoms present in the final product obtained from the hydrolysis of PCl_5 is :
- Chalcogen group elements are :
- AB_3 is an interhalogen T-shaped molecule. The number of lone pairs of electrons on A is _______. (Integer answer)
- Which pair of oxides is acidic in nature?
- Given below are the oxides : Na_ 2 O, As_ 2 O_ 3 , N_ 2 O, NO and Cl_ 2 O_ 7 . Number of amphoteric oxides is:
- The highest industrial consumption of molecular hydrogen is to produce compounds of element:
- Identify the correct statement for B_ 2 H_ 6 from those given below: (A) In B_ 2 H_ 6 , all B-H bonds are equivalent. (B) In B_ 2...
- The most stable trihalide of nitrogen is:
- PCl_ 5 is well known, but NCl_ 5 is not. Because,
- The total number of acidic oxides from the following list is NO, N_ 2 O, B_ 2 O_ 3 , N_ 2 O_ 5 , CO, SO_ 3 , P_ 4 O_ 10
- The sum of number of lone pairs of electrons present on the central atoms of XeO_ 3 , XeOF_ 4 and XeF_ 6 is _____ .
- The geometry around boron in the product 'B' formed from the following reaction is BF_ 3 + NaH (450 K) A + NaF A + NMe_ 3 B
Other chapters
Alcohols, Phenols and EthersAldehydes, Ketones and Carboxylic AcidsAlternating CurrentAminesAnatomy of Flowering PlantsAncient Indian HistoryAnimal KingdomApplication of DerivativesArea Under CurveAromatic Compounds and Aryl HalidesAtomsBasic Mathematics and LogarithmBinomial TheoremBiodiversity and ConservationBiological ClassificationBiomoleculesBiotechnology and Its ApplicationsBiotechnology: Principles and ProcessesBody Fluids and CirculationBreathing and Exchange of GasesCell Cycle and Cell DivisionCell: The Unit of LifeChemical Bonding and Molecular StructureChemical Coordination and Integration