Question

Please some helpful questions and with answers for std IX CBSE

Answer 1

SOME QUESTIONS FROM CHEMISTRY :-
Question:- What is an atom?
Answer:- It is the smallest particle of an element which can take part in a chemical change. It may or may not be capable of independent existence.

Question:- What is symbol ?
Answer:-  The abbreviation used for lengthy names of elements are termed as their symbol.

Question:-What is molecule?
Answer:- It is smallest particle of an element or a compound that is capable of independent existence.

Question:- What is an atomicity?
Answer:- The number of an atom present in molecule of an element or a compound is known as its atomicity.

Question:- What is ion?
Answer:- It is an electrically charged atom or group of atom. It is formed by the loss or gain of electrons by an atom. Ions are of two types : 1.CATION , 2.ANION