Dalton's Atomic Theory( Concept of Atom, Molecule, Element, and Compound) NEET Questions

Physical Chemistry - Some Basic Concepts of Chemistry

Dalton's Atomic Theory( Concept of Atom, Molecule, Element, and Compound) MCQ Questions


1.
Who proposed the atomic theory in 1808?
A.
John Dalton
B.
J.J. Thomson
C.
Ernest Rutherford
D.
Niels Bohr
😑 View Answer Rough Work Error
ANSWER :
A. John Dalton
2.
According to Dalton’s atomic theory, atoms of a given element are:
A.
Identical
B.
Different
C.
Partially identical
D.
Always different
😑 View Answer Rough Work Error
ANSWER :
A. Identical
3.
Which of the following is NOT a postulate of Dalton’s atomic theory?
A.
Atoms are indivisible
B.
Atoms of the same element have different masses
C.
Atoms can change their identity
D.
Elements are composed of energy
😑 View Answer Rough Work Error
ANSWER :
C. Atoms can change their identity
4.
Dalton’s atomic theory explains the law of:
A.
Conservation of mass
B.
Multiple proportions
C.
Definite proportions
D.
Gaseous volumes
😑 View Answer Rough Work Error
ANSWER :
A. Conservation of mass
5.
One of the statements of Dalton's atomic theory is: "Compounds are formed when atoms of different elements combine in a fixed ratio." Which law is not related?

NEET - 2019

A.
Law of conservation of mass
B.
Law of definite proportions
C.
Law of multiple proportions
D.
Avogadro's law
😑 View Answer Rough Work Error
ANSWER :
D. Avogadro's law
6.
Which of the following is an example of a molecule?
A.
Na
B.
Hâ‚‚O
C.
Oâ‚‚
D.
Fe
😑 View Answer Rough Work Error
ANSWER :
B. Hâ‚‚O