Q 1 :    

Choose the incorrect statement about Dalton's Atomic Theory.               [2024]

  • All the atoms of a given element have identical properties including identical mass.

     

  • Chemical reactions involve reorganization of atoms.

     

  • Compounds are formed when atoms of different elements combine in any ratio.

     

  • Matter consists of indivisible atoms.

     

(C)         Compounds are formed when atoms of different elements combine in simple ratio.

 



Q 2 :    

The incorrect postulates of the Dalton's atomic theory are :

(A) Atoms of different elements differ in mass.

(B) Matter consists of divisible atoms.

(C) Compounds are formed when atoms of different element combine in a fixed ratio.

(D) All the atoms of given element have different properties including mass.

(E) Chemical reactions involve reorganisation of atoms.

Choose the correct answer from the options given below:                     [2024]

  • (B), (D), (E) only

     

  • (B), (D) only

     

  • (A), (B), (D) only

     

  • (C), (D), (E) only

     

(B)            According to Dalton's atomic theory:

                Atoms are indivisible and atoms of a given element have identical properties including mass.