The p-Block Elements questions
1863 published questions with worked solutions.
- Which one of the following properties is not shown by NO?
- The reaction of zinc with dilute and concentrated nitric acid, respectively, produces :
- The pair in which phosphorous atoms have a formal oxidation state of +3 is :
- The products obtained when chlorine gas reacts with cold and dilute aqueous NaOH are
- In the following reactions, ZnO is respectively acting as a / an (a) ZnO + Na_2O Na_2ZnO_2 (b) ZnO + CO_2 ZnCO_3
- Among the oxides of nitrogen : N_2O_3, N_2O_4 and N_2O_5; the molecule(s) having nitrogen-nitrogen bond is/are -
- A group 13 element 'X' reacts with chlorine gas to produce a compound XCl_3. XCl_3 is electron deficient and easily reacts with...
- Diborane (B_2H_6) reacts independently with O_2 and H_2O to produce, respectively:
- Assertion: Ozone is destroyed by CFCs in the upper stratosphere. Reason: Ozone holes increase the amount of UV radiation reaching...
- C_ 60 , an allotrope of carbon contains:
- The ore that contains the metal in the form of fluoride is:
- The noble gas that does not occur in the atmosphere is:
- The number of pentagons in C_ 60 and trigons (triangles) in white phosphorus, respectively, are:
- Xenon hexafluoride on partial hydrolysis produces compounds 'X' and 'Y'. Compounds 'X' and 'Y' and the oxidation state of Xe are...
- In KO_2, the nature of oxygen species and the oxidation state of oxygen atom are, respectively :
- In XeO_3F_2, the number of bond pair (s), π-bond (s) and lone pair (s) on Xe atom respectively are -
- The number of P–O bonds in P_4O_6 is -
- The correct statements among I to III regarding group 13 element oxides are, (I) Boron trioxide is acidic. (II) Oxides of...
- The amorphous form of silica is:
- Good reducing nature of H_3PO_2 is attributed to the presence of:
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