Some Basic Concepts of Chemistry questions
951 published questions with worked solutions.
- How many moles of carbon are present in 3.6 kg of carbon?
- What is the mass in kg of 5 mole of acetic acid (mol.mass=60)?
- "A given compound always contains the same proportion of elements" is a statement of -
- What is the number of moles of N atoms and number of moles of oxygen atoms respectively present in one mole of uracil ?
- Which of the following pair of compounds does not demonstrate the law of multiple proportion?
- Calculate number of moles present in 9.10 10^ -2 Kg of water
- What is the number of moles of nitrogen atoms present in one mole cytosine?
- What is the number of CO_2 molecules in 45.42 litre at STP? (consider molar volume of gas at STP = 22.71 L mol^ -1 )
- What quantity of carbon dioxide is produced when 2 mole of carbon is burnt in 16 g of dioxygen?
- Mass of one molecule of oxygen in amu and in gram respectively is
- What is the total number of carbon atoms present in n mole of citric acid?
- How many mole of oxygen gas at STP are equivalent to 5.6 litre?
- What is the mass in gram of 1 atom of an element if it's atomic mass is 10 u ?
- What is the volume occupied by 1 molecule of water, if its density is 1 g cm^ -3 ?
- What is the number of moles of Cl atoms and N atoms respectively present in n moles of tear gas?
- How many moles of nitrogen atoms are present in 8 g of ammonium nitrate? (Molar mass of ammonium nitrate = 80)
- Chlorine exists in two isotopic forms ^ 35 Cl, ^ 37 Cl. If average atomic mass of chlorine is 35.5., What is the percentage...
- Calculate the mass of 100 molecules of oxygen in amu and in grams
- How many molecules of carbon dioxide are formed when 0·6 g carbon is burnt in air ?
- Which of the following pair of compounds cannot demonstrate law of multiple proportion ?
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