EASY
Earn 100

What is the approximate size of a molecule?

Important Questions on Atoms and Molecules

EASY
Science>Chemistry>Atoms and Molecules>Molecule
The atomicity of ozone molecule is:
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Science>Chemistry>Atoms and Molecules>Molecule
State the number of atoms present in CO32-.
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Science>Chemistry>Atoms and Molecules>Molecule
Define molecule.
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Science>Chemistry>Atoms and Molecules>Molecule
The gram atomic mass of  Na1123 is
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Science>Chemistry>Atoms and Molecules>Molecule
Give two examples of monatomic molecules of an element.
EASY
Science>Chemistry>Atoms and Molecules>Molecule
The mass of hydrogen atom is determined:
EASY
Science>Chemistry>Atoms and Molecules>Molecule
Give two examples of molecules having two different kinds of atoms.
MEDIUM
Science>Chemistry>Atoms and Molecules>Molecule
Atomicity of metals is taken as:
EASY
Science>Chemistry>Atoms and Molecules>Molecule
Which amongst the following elements is tetratomic?
EASY
Science>Chemistry>Atoms and Molecules>Molecule
The number of atoms in CO32- is
EASY
Science>Chemistry>Atoms and Molecules>Molecule
The mass of _____ is equivalent to one atomic mass unit:
MEDIUM
Science>Chemistry>Atoms and Molecules>Molecule
Classify each of the following on the basis of their atomicity.
(a) F2 
(b) NO2
(c) P4O10     
(d) O3
(e) He 
(f) Ag
 
EASY
Science>Chemistry>Atoms and Molecules>Molecule
The atomic masses of elements are always whole numbers.
EASY
Science>Chemistry>Atoms and Molecules>Molecule
Name 
(a) an element, 
(b) an isotope of the element, used as atomic mass unit.
EASY
Science>Chemistry>Atoms and Molecules>Molecule
Relative molecular mass has the unit of g mol-1.
EASY
Science>Chemistry>Atoms and Molecules>Molecule
Give two examples of molecules having three different kinds of atoms.
MEDIUM
Science>Chemistry>Atoms and Molecules>Molecule
The mass of the helium atom is twice that of the hydrogen atom.
EASY
Science>Chemistry>Atoms and Molecules>Molecule
The accepted unit of atomic mass and molecular mass is 
HARD
Science>Chemistry>Atoms and Molecules>Molecule
Draw the vibratory motions of the carbon dioxide molecule.
EASY
Science>Chemistry>Atoms and Molecules>Molecule
State the number of atoms present in P2O5.