The p-Block Elements questions
1863 published questions with worked solutions.
- Potassium superoxide has _____ unpaired electron(s)
- Cl_2 disproportionates to NaCl and NaClO_3 on passing into hot NaOH solution. In this process each mole of Cl_2 consumes _____...
- Unpaired electron(s) in superoxide ion _____
- Nitrates of I group (except LiNO_3) on heating give:
- The reaction of sodium thiosulphate with I_2 gives:
- When chlorine is passed through concentrated solution of KOH, the compound formed is:
- Acidified solution of sodium thiosulphate is unstable because in thiosulphate:
- When sulphur is heated with NaOH(aq) the compounds formed are:
- Sodium thiosulphate is formed when:
- The non-metal which is not affected by NaOH:
- Sodium nitrate decomposes above 800°C and does not give:
- KO_2 is used in oxygen cylinder in space air craft and submarines because it:
- NO_2 is obtained by heating:
- When one mole of bleaching powder is completely decomposed in presence of CO_2 then the mass of chlorine gas that is liberated...
- BeF_2 is soluble in water whereas fluorides of other alkaline earth metals are insoluble because of:
- The bleaching action of bleaching powder is due to the formation of:
- Which of the following compounds is a peroxide?
- Oxygen is obtained from bleaching powder by:
- Which of the following represents calcium chlorite?
- The active constituent of bleaching powder 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