The number of molecules and atoms present in $1.2 \ g$ of ozone $(O_3)$ are respectively:
- A$1.5 \times 10^{25}, 4.5 \times 10^{20}$
- B$1.5 \times 10^{12}, 4.5 \times 10^{12}$
- C$1.5 \times 10^{24}, 4.5 \times 10^{12}$
- D$1.5 \times 10^{22}, 4.5 \times 10^{22}$
Explore More
Similar Questions
Which of the following substances consists of a total of $1 \ mol$ of atoms? (Molar mass of $NH_3 = 17 \ g/mol, H_2O = 18 \ g/mol, N_2 = 28 \ g/mol, CO_2 = 44 \ g/mol$)
One atom of an element weighs $3.32 \times 10^{-23} \ g$. How many gram atoms are there in $20 \ kg$ of the element?
Difficult
View SolutionThe Avogadro number is defined as ......
Easy
View SolutionThe number of moles in $620 \ g$ of sodium oxide is ..... moles.
Easy
View SolutionThe volume of a drop of water is $0.0018 \ mL$. The number of water molecules present in two drops of water at room temperature is:
Difficult
View SolutionVedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo