Some Basic Concepts of Chemistry questions
951 published questions with worked solutions.
- The molarity of 2 N H_2SO_4 is:
- The number of moles of oxygen in one litre of air containing 21% oxygen by volume, in standard conditions, is
- If 250 mL of a solution contains 24.5 g H_2SO_4 , the molarity and normality respectively are:
- If 20 g of CaCO_3 is treated with 100 mL of 20% HCl solution, the amount of CO_2 produced is
- 5.85 g of NaCl dissolved in H_2O and solution is made upto 500 mL. The molarity is:
- Weight of H_2O in 1000 kg CuSO_4 5H_2O is:
- Number of g-atom of S present in 49 g H_2SO_4 are:
- Consider the following data: Element — Atomic weight A — 12 B — 35.5 A and B combine to form a new substance X. If four moles of...
- 0.5 mole of H_2SO_4 is mixed with 0.2 mole of Ca(OH)_2 . The maximum number of mole of CaSO_4 formed is:
- 14 g of element X combine with 16 g of oxygen. On the basis of this information, which of the followings is a correct statement?
- x g of Ag was dissolved in HNO_3 and the solution was treated with excess of NaCl when 2.87 g of AgCl was precipitated. The value...
- Number of mole of 1 m^3 gas at NTP are:
- The molarity of pure water is:
- In a gaseous reaction of the type aA + bB cC + dD, which is wrong?
- A mixture containing 100 g H_2 and 100 g O_2 is ignited so that water is formed according to the reaction, 2 H_2 + O_2 2 H_2O ;...
- How many g are present in one mole of MgSO_4 ?
- The equivalent weight of an acid is obtained by dividing its mol. wt. by its:
- The number of mole of solute per kg of solvent is called:
- The mole fraction of NaCl in a solution containing 1 mole of NaCl in 1000 g of water is :
- The dehydration yield of cyclohexanol to cyclohexene is 75%. What would be the yield, if 100 g of cyclohexanol is dehydrated?
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