Some Basic Concepts of Chemistry questions
951 published questions with worked solutions.
- Gay-Lussac's law of gaseous volumes is derived from:
- Four one-litre flasks are separately filled with the gases O _2, F _2, CH _4 and CO _2 under the same conditions. The ratio of...
- Avogadro's number is the number of molecules present at NTP in:
- One mole of a gas is defined as:
- One mole of CO _2 contains:
- At NTP, 5.6 litre of a gas weighs 8 g . The vapour density of the gas is:
- A flask of methane ( CH _4) was weighed. The methane was then pushed out and the flask was again weighed when filled with oxygen...
- Equal volumes of two gases are kept in separate containers at the same temperature and pressure. Then:
- The relation between molecular weight (M) and vapour density (VD) is:
- The number of molecules present in 1 mL of a gas or vapour at STP is:
- Weight of 112 mL of oxygen at NTP, on liquefaction, would be:
- A gas is found to have the formula [ CO ]_x. Its vapour density is 70. The value of x must be:
- A flask filled with CCl _4 (as vapour) was weighed at a temperature and pressure. The flask was then filled with oxygen at the...
- If air contains N _2 and O _2 in a volume ratio of 4:1, the average vapour density of air is:
- 2 moles of nitrogen and 6 moles of hydrogen are converted completely into ammonia. Under the same temperature and pressure, the...
- 2 moles of nitrogen and 6 moles of hydrogen are converted completely into ammonia. Under the same temperature and pressure, the...
- Which of the following is an intensive property? **[K CET 2007]**
- The active mass of 45 g of KCl in a 3 L flask would be
- The vapour density of completely dissociated NH₄Cl would be:
- If 340 g of a mixture of N₂ and H₂ in the correct ratio gave a 20% yield of NH₃, the mass produced would be:
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