Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NEET2015ChemistrySome Basic Concepts of ChemistryActual

The number of water molecules is maximum in

Options

  1. A18 molecules of water.
  2. B1 . 8   gram   of water.
  3. C18   gram   of water.
  4. D18   moles of water.

Correct answer

D. 18   moles of water.

Step-by-step solution

18   grams of water corresponds to 1   mole and contains = 6 .02 × 10 23   water molecules. 18   moles of water contains = 18   × 6 .02 × 10 23   water molecules. 18 molecules of water 1 . 8   grams of water contain 1 . 8 18 × N A = 0 . 1 N A water molecules. So, 18   mole water has a maximum number of molecules.

Practice Some Basic Concepts of Chemistry on Quantrex Academy →

More from Some Basic Concepts of Chemistry

Calculate the mass of potassium chlorate required to liberate 6.72 dm ^3 of oxygen at STP. [Molar mass of potassium chlorate = 122.5 g mol ⁻¹ ] 2026Find the mass of lime obtained by heating 500 g of 90 % pure lime stone. [Molar masses Ca =40 g/mol, O =16 g/mol & C =12 g/mol] 2026A coordination complex contains 2.6 % of Mg. Find the number of Mg atoms in 5.0 g of this sample. (gram atomic mass of Mg = 24 g ) 2026Calculate the number of moles and molecules of chlorine in 4.48 dm ^3 of chlorine at STP. 2026What is the gram atomic mass of an element whose mass of one atom is 3.9853 10⁻²³ g ? 2026Calculate the total mass and number of molecules present in 3 moles of benzene. 2026Which of the following gases has high vapour density at same temperature and pressure? 2026What is the number of moles of Cl atoms present in n moles of tear gas and in n moles of mustard gas respectively? 2026 Full Some Basic Concepts of Chemistry list All NEET PYQs