The p-Block Elements questions
1863 published questions with worked solutions.
- How many moles of Sulphur are formed from 2 moles of CaS_5 in the following reaction? CaS_5 + CaS_2O_3 + HCl
- How many of the following are mixed oxides? Pb_3O_4, KO_2, H_2O_2, Al_2O_3, Fe_3O_4, N_2O, Mn_3O_4
- The number of pi bonds in thiosulphuric acid is _______.
- What is the molecular mass (in amu) of the product 'X' in the following unbalanced chemical equation? P_4 + HNO_3 Hot conc. X +...
- The valence shell electronic configuration of group 17 elements is given as ns^2np^X. The value of 'X' is _______.
- If Cl_2 is passed through hot aqueous NaOH, the products formed have Cl in different oxidation states. If the oxidation state of...
- How many of the following trends are CORRECT for group 17 elements? 1. F_2 < Cl_2 < Br_2 < I_2 (covalent radius) 2. F_2 < Cl_2 >...
- Aqua regia is a mixture of _______ parts of conc. HCl and 1 part of conc. HNO_3.
- How many of the following statements are CORRECT? 1. SO_2 is produced by the action of hydrochloric acid on Na_2SO_3. 2. SO_2 is...
- The number of S=O bonds in pyrosulphuric acid is _______.
- The number of electrons present in the species used as a catalyst in the lead chamber process to manufacture H_2SO_4 is _______.
- The number of Cl=O bonds in perchloric acid is _______.
- In an interhalogen compound of type XX'_7, the oxidation state of X is _______.
- The most abundant noble gas in the universe has atomic number of _______.
- The number of compounds in which the oxidation state of the halogen is less than +5 is _______. 1. Hypochlorous acid 2. Chlorous...
- How many of the following orders are CORRECT with respect to the given properties of noble gases? 1. He < Ne < Ar < Kr < Xe...
- Xe^+PtF_Y^- was the first compound synthesized from a noble gas. The value of 'Y' is _______.
- How many of the following react with water to form O_2? XeF_2, XeF_6, XeF_4, Ca_3P_2, NH_3
- The number of paramagnetic species from the following is _______. Cl_2O, ClO_2, Cl_2O_6, Cl_2O_7
- The general valence shell electronic configuration of p-block elements is ns^2np^ (1 to x) . The value of 'x' is _______.
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