Some Basic Concepts of Chemistry questions
951 published questions with worked solutions.
- The number of hydrogen atoms present in 5.4 g of urea is: (Given: Molar mass of urea : 60 g mol^ -1 N_A : 6.022 10^ 23 particles...
- The amount of carbon dioxide evolved upon complete combustion of 116 g of n-butane is (Given: atomic mass in amu H = 1, C = 12...
- The molecular formula of a commercial resin used for exchanging ions in water softening is C_8H_7SO_3Na (molecular weight = 206)....
- A sample of a hydrate of barium chloride weighing 61 g was heated until all the water of hydration is removed. The dried sample...
- In the following reaction: A + 2 B + 3 C AB _2 C _3. 6.0 g of A, 6.0 10^ 23 atoms of B and 0.036 mol of C reacted and formed 4.8...
- An organic compound contains C, H and S. The minimum molecular weight of the compound containing 8% Sulphur is
- The amount of arsenic pentasulphide that can be obtained when 35.5 g arsenic acid is treated with excess H _2 S in the presence...
- The volume of 0.1 M strong dibasic acid sufficient to neutralize 1g of a base that furnishes 0.04 mole of OH ^- in aqueous...
- Excess of NaOH (aq) was added to 100 mL of FeCl_3 (aq) resulting into 2.14 g of Fe(OH)_3 . The molarity of FeCl_3 (aq) is: (Given...
- The value of amu is which of the following? [Guj CET 2007]
- Law of multiple proportions is illustrated by one of the following pairs [Kerala CEE 2003]
- The number of hydrogen atoms present in 25.6 g of sucrose (C_ 12 H_ 22 O_ 11 ), which has a molar mass of 342.3 g, is [VITEEE...
- 80 g of oxygen contains as many atoms as in [K CET 2008]
- How many H-atoms are present in 0.046 g of ethanol? [BITSAT 2003]
- Which has maximum number of atoms? [DCE 2003]
- A gas has a vapour density 11.2. The volume occupied by 1 g of the gas at NTP is
- The number of atoms in 4.25 g of NH_3 is approximately [MHT-CET 2003]
- Law of constant composition is the same as the law of [WB-JEE 2007]
- One mole of CO_2 contains [Manipal 2010]
- Statement 1: Equal moles of different substances contain the same number of constituent particles. Statement 2: Equal weights of...
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