Solved UPSC CDS/OTA Question
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Q · Atoms and MoleculesMedium · 45s
Which of the following statements regarding Dalton’s Atomic Theory is/are correct? 1. Atoms of the same element are identical in all respects. 2. Atoms cannot be created or destroyed in a chemical reaction. 3. Atoms of different elements combine in a fixed, simple ratio to form compounds.
TopicAtoms and Molecules
Question Typemultiple choice
DifficultyMedium
Marking+1 / −0.33
Test Duration30 min
Q 1 / 30Next question →
Step-by-Step Solution
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Dalton’s theory states that atoms are indivisible and indestructible; identical atoms form elements; compounds are formed in fixed, simple ratios.
Final Answer: Option D — 1, 2 and 3