Question:
$80\,g$ of oxygen contains as many atoms as in
$80\,g$ of oxygen contains as many atoms as in
Updated On: Apr 2, 2024
- $80\,g$ of hydrogen
- $1\,g$ of hydrogen
- $10\,g$ of hydrogen
- $5\,g$ of hydrogen
Hide Solution
Verified By Collegedunia
The Correct Option is D
Solution and Explanation
Number of moles of oxygen $=\frac{80}{16}$
Number of atoms of oxygen $=\frac{80}{16} \times N_{0} \times 2$
$=5 \times N_{0} \times 2$
Number of moles of $5 \,g$ of hydrogen $=\frac{5}{1}$
Number of atoms in $5 \,g$ of hydrogen $=5 \times N_{0} \times 2$
Hence, the number of atoms in $80 \,g$ of oxygen is equal to the number of atoms in $5\, g$ of hydrogen.
Number of atoms of oxygen $=\frac{80}{16} \times N_{0} \times 2$
$=5 \times N_{0} \times 2$
Number of moles of $5 \,g$ of hydrogen $=\frac{5}{1}$
Number of atoms in $5 \,g$ of hydrogen $=5 \times N_{0} \times 2$
Hence, the number of atoms in $80 \,g$ of oxygen is equal to the number of atoms in $5\, g$ of hydrogen.
Was this answer helpful?
0
0
Top Questions on Some basic concepts of chemistry
- Identify the pair which is not correctly matched:
- AP EAPCET - 2025
- Chemistry
- Some basic concepts of chemistry
- Identify the herbicides from the following:
a) DDT b) Aldrin c) Sodium chlorate d) Nicotine e) Sodium arsenite- AP EAPCET - 2025
- Chemistry
- Some basic concepts of chemistry
Brass alloy is made of which metals?
- NATA - 2025
- Chemistry
- Some basic concepts of chemistry
- Which of the following is an extensive property?
- KEAM - 2025
- Chemistry
- Some basic concepts of chemistry
- A shell in projectile motion explodes while in motion, what is the trajectory of the center of the fragments?
- KEAM - 2025
- Chemistry
- Some basic concepts of chemistry
View More Questions
Questions Asked in KCET exam
- The minimum value of \( 1 - \sin x \) is:
- KCET - 2025
- Inverse Trigonometric Functions
Match List-I with List-II and select the correct option:
- KCET - 2025
- Bond Parameters
- The maximum value of \( z = 3x + 4y \), subject to the constraints \( x + y \leq 40, x + 2y \geq 60 \) and \( x, y \geq 0 \) is:
- KCET - 2025
- Linear Programming Problem
- Given, a current carrying wire of non-uniform cross-section, which of the following is constant throughout the length of the wire?
- KCET - 2025
- Current electricity
- If the number of terms in the binomial expansion of \((2x + 3)^n\) is 22, then the value of \(n\) is:
- KCET - 2025
- Binomial theorem
View More Questions
Concepts Used:
Some Basic Concepts of Chemistry
Chemistry is a vast subject and for understanding its significance we can take help of following points:
- Chemistry plays an important role in understanding various subjects like physics, geology and biology.
- Chemistry is a core branch of science that explains us about the various compositional properties and interaction of matter. It also helps to understand various chemical reactions.
- Chemistry is important in order to understand the behaviour of fertilizers, alkenes, acids, salts, dyes, polymers, drugs, soaps and alloys in organic and inorganic chemistry.
- Chemistry plays an important role in various fields like healthcare, industrial, research, food, and farm activities.
Read More: Some Basic Concepts of Chemistry
Classification of Matter
There are two ways of classifying the matter:
(A) Physical Classification:
Matter can exist in three physical states:
- Solids - have definite volume and definite shape
- Liquids - have definite volume but not definite shape.
- Gases - have neither definite volume nor definite shape.
(B) Chemical Classification:
Based upon the composition, matter can be divided into two main types:
- Pure Substances are defined as a single substance (or matter) which cannot be separated by simple physical methods. Pure substances can be further classified as (i) Elements (ii) Compounds
- Mixtures are the combination of two or more elements or compounds which are not chemically combined together and may also be present in any proportion.