Class 9 Exam  >  Class 9 Questions  >  1 mole of water molecules has:a)2 moles of ox... Start Learning for Free
1 mole of water molecules has:
  • a)
    2 moles of oxygen atoms
  • b)
    1 mole of hydrogen atom
  • c)
    2 moles of hydrogen atoms
  • d)
    2 moles of hydrogen molecule
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
1 mole of water molecules has:a)2 moles of oxygen atomsb)1 mole of hyd...
So, 1 mole H2O = 1.2044X10^24 hydrogen atoms. Therefore 2 mole H2O will have 2.4088X10^24 hydrogen atoms. Since one mole is defined as 6.022 x 10^23, and there are two hydrogen per molecule, that would mean that there are exactly 12.044 x 10^23 molecules of hydrogen in one mole of water.
View all questions of this test
Most Upvoted Answer
1 mole of water molecules has:a)2 moles of oxygen atomsb)1 mole of hyd...
The correct answer is 'c' because the chemical formula of water is h2o and it clearly states that there are 2 hydrogen moles
Free Test
Community Answer
1 mole of water molecules has:a)2 moles of oxygen atomsb)1 mole of hyd...
A mole is a unit used in chemistry to represent a specific number of particles, which is approximately 6.022 x 10^23 particles. In the case of water molecules (H2O), 1 mole of water molecules contains this enormous number of water molecules.

To determine the number of atoms in a mole of water molecules, we need to consider the composition of a water molecule. A water molecule consists of two hydrogen atoms (H) and one oxygen atom (O). Therefore, we have:

- 2 moles of hydrogen atoms: Since each water molecule contains 2 hydrogen atoms, 1 mole of water molecules will contain 2 moles of hydrogen atoms. This is because the mole ratio of hydrogen atoms to water molecules is 2:1.

- 1 mole of oxygen atoms: Each water molecule contains 1 oxygen atom. Therefore, in 1 mole of water molecules, there will be 1 mole of oxygen atoms.

Hence, the correct option is C, which states that 1 mole of water molecules has 2 moles of hydrogen atoms.
Attention Class 9 Students!
To make sure you are not studying endlessly, EduRev has designed Class 9 study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Class 9.
Explore Courses for Class 9 exam

Top Courses for Class 9

1 mole of water molecules has:a)2 moles of oxygen atomsb)1 mole of hydrogen atomc)2 moles of hydrogen atomsd)2 moles of hydrogen moleculeCorrect answer is option 'C'. Can you explain this answer?
Question Description
1 mole of water molecules has:a)2 moles of oxygen atomsb)1 mole of hydrogen atomc)2 moles of hydrogen atomsd)2 moles of hydrogen moleculeCorrect answer is option 'C'. Can you explain this answer? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about 1 mole of water molecules has:a)2 moles of oxygen atomsb)1 mole of hydrogen atomc)2 moles of hydrogen atomsd)2 moles of hydrogen moleculeCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for 1 mole of water molecules has:a)2 moles of oxygen atomsb)1 mole of hydrogen atomc)2 moles of hydrogen atomsd)2 moles of hydrogen moleculeCorrect answer is option 'C'. Can you explain this answer?.
Solutions for 1 mole of water molecules has:a)2 moles of oxygen atomsb)1 mole of hydrogen atomc)2 moles of hydrogen atomsd)2 moles of hydrogen moleculeCorrect answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 9. Download more important topics, notes, lectures and mock test series for Class 9 Exam by signing up for free.
Here you can find the meaning of 1 mole of water molecules has:a)2 moles of oxygen atomsb)1 mole of hydrogen atomc)2 moles of hydrogen atomsd)2 moles of hydrogen moleculeCorrect answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of 1 mole of water molecules has:a)2 moles of oxygen atomsb)1 mole of hydrogen atomc)2 moles of hydrogen atomsd)2 moles of hydrogen moleculeCorrect answer is option 'C'. Can you explain this answer?, a detailed solution for 1 mole of water molecules has:a)2 moles of oxygen atomsb)1 mole of hydrogen atomc)2 moles of hydrogen atomsd)2 moles of hydrogen moleculeCorrect answer is option 'C'. Can you explain this answer? has been provided alongside types of 1 mole of water molecules has:a)2 moles of oxygen atomsb)1 mole of hydrogen atomc)2 moles of hydrogen atomsd)2 moles of hydrogen moleculeCorrect answer is option 'C'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice 1 mole of water molecules has:a)2 moles of oxygen atomsb)1 mole of hydrogen atomc)2 moles of hydrogen atomsd)2 moles of hydrogen moleculeCorrect answer is option 'C'. Can you explain this answer? tests, examples and also practice Class 9 tests.
Explore Courses for Class 9 exam

Top Courses for Class 9

Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev