SSC
CHEMISTRY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
What is the smallest unit of matter that cannot be broken down by chemical means?
|
|
Atom
|
|
|
Element
|
|
|
Ion
|
|
|
Isotope
|
Explanation:
Detailed explanation-1: -Answer: Solution: Atom-The basic unit of matter which cannot be broken down into independent particles. Molecule-The smallest particle of a substance which can exist independently and retain properties of the substance.
Detailed explanation-2: -Lavoisier defined element as basic form of matter that cannot be broken down into simpler substances by chemical reactions.
Detailed explanation-3: -A molecule is the smallest unit of a compound that can exist by itself and retain all of its chemical properties.
There is 1 question to complete.