railway DFCCIL Junior Executive 2023 (CBT 1 & CBT 2) Mock Test General Science Chemistry Structure of Atom
Which statement(s) is/are correct regarding Dalton's Atomic Theory?
(I) All matters are made of very tiny particles.
(II) Atoms of different elements have different masses and chemical properties.
(III) The relative number of atoms is variable in any compound.
1
Only (I) and (II)
2
Only (I) and (III)
3
Only (II) and (III)
4
All (I), (II) and (III)