Some Basic Concepts of Chemistry questions
951 published questions with worked solutions.
- The equivalent weight of iron in Fe_2O_3 would be:
- The eq. wt. of I_2 in the change I_2 IO_3^- is:
- 22.4 dm^3 of hydrogen at S.T.P. weighs :
- On passing electric current in to a solution of salt of metal, M the reaction at cathode takes place as : M^ 2+ + 2e^- M . The...
- 1.1081 gram of copper displaces 3.67 grams of silver from a solution of AgNO_3 . The equivalent weight Ag is 107.88. What is the...
- On passing electric current into a solution of a salt of metal M, the reaction taking place at the cathode is M^ 2+ +2e^- M . The...
- Number of moles of a substances present in one liter volume is known as
- The number of moles of H_2 in 0.224 L of hydrogen gas at STP (273 K, 1 atm) is
- Avogadro's hypothesis states that
- 1.0 L of N_2 and 7/8 L of O_2 at the same temperature and pressure were mixed together. What is the relation between the masses...
- The molecular mass of each N_2 and CO is 28. If 0.5 L of N_2 at 27^ C and 700 mm pressure contains n molecules, the number of...
- By Avogadro's law, V=kn. If volume occupied by 1 mole of a gas at STP is 22.4 L, then what will be the value of k if we take 0.5...
- The density of phosphorus vapour at STP is 5.54 g ,L^ -1 . Hence, molecular formula of phosphorus is
- The equivalent weight of sulphur in S_ 2 Cl_ 2 is
- The equivalent weight of sulphur in S_2Cl_2 is
- The equivalent weight of KMnO_4 would be
- If a compound on analysis was found to contain C = 18.5%, H = 1.55%, Cl = 55.04% and O = 24.81% then its empirical formula is
- An organic compound having carbon, hydrogen and sulphur contains 4% of sulphur. The minimum molecular weight of the compound is
- Compounds having molecular formula C_ 3 H_ 6 O_ 2 , which of the following ;
- The formula C_ 12 H_ 26 O_4N_2 represents
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