Tag: atoms, molecules and radicals

Questions Related to atoms, molecules and radicals

According to Dalton's atomic theory, atoms of a given element are identical in: 

chemistry atoms, molecules and radicals history of atomic model atomic theory of dalton daltons atomic theory

  1. chemical properties and size

  2. weight and colour

  3. properties and colour

  4. colour and size

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Correct Option: A
Explanation:

According to atomic theory, atoms of a given element are identical in size and chemical properties.

Which postulate of Dalton's atomic theory is the result of the law of conservation of mass?

chemistry atoms, molecules and radicals history of atomic model atomic theory of dalton daltons atomic theory

  1. All matter is made of very tiny particles called atoms

  2. Atoms of a given element are identical in mass and chemical properties

  3. Atoms of different elements have different masses and chemical properties

  4. Atoms are indivisible particles and cannot be created nor destroyed

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Correct Option: D
Explanation:

According to Dalton's  theory atoms are indivisible particles and cannot be created nor destroyed.

Which of the following correctly represents symbol for chlorine in Berzelius system?

chemistry atoms, molecules and radicals history of atomic model atomic theory of dalton daltons atomic theory

  1. M

  2. Cl

  3. Mn

  4. C

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Correct Option: A
Explanation:

M correctly represents a symbol for chlorine in Berzelius system. The symbol M was derived from the word Muriatic Radicle which signifies element chlorine. At present, the symbol M is replaced with symbol Cl.