Q1ChemistryUnit 1: Some Basic Concepts in Chemistry
Matter consist of particles such as
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Part of Some Basic Concepts in Chemistry in JEE Main Chemistry.
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Q2ChemistryUnit 1: Some Basic Concepts in Chemistry
Members of which of the following have similar chemical properties?
Q3ChemistryUnit 1: Some Basic Concepts in Chemistry
Assertion
Element can form different compound.
Reason
Any substance that contains only one
kind of an atom is known as an element.
Q4ChemistryUnit 1: Some Basic Concepts in Chemistry
An acid having basicity of one and having only one replaceable hydrogen ion per molecule of the acid is :
This question has multiple correct options
Q5ChemistryUnit 1: Some Basic Concepts in Chemistry
What are the materials which contain
at least two pure substances and show
the properties of their constituents called?
Q6ChemistryUnit 1: Some Basic Concepts in Chemistry
4 protons, 5 neutrons, and 4 electrons
are there in an atom of beryllium. Its
mass number is:
Q7ChemistryUnit 1: Some Basic Concepts in Chemistry
What is the ratio of the number of
neutrons present in potassium and magnesium atoms with mass number
39 and 24 respectively?
Q8ChemistryUnit 1: Some Basic Concepts in Chemistry
J J Thomson Model could not able to
explain the following?
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Popular questions in Concept of atom, molecule, element and compound
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- Assertion Element can form different compound. Reason Any substance that contains only one kind of an atom is known as …
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