Atoms and Molecules

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Question

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Question 1 :

Who suggested that if we go on dividing matter, a stage will come when particles obtained can’t be divided further?

1. Antoine L Lavoisier
2. Joseph L Proust
3. Democritus and Leucippus
4. None of these
Answer
26002

Question 2 :

The diameter of an atom of Hydrogen is:

1. 10⁻⁹m
2. 10⁻⁸m
3. 10⁻¹⁰m
4. 10⁻¹m
Answer
26003

Question 3 :

Who was the first to use the symbols for elements?

1. Berzillius
2. Antoine L Lavoisier
3. Dalton
4. Joseph L Proust
Answer
26004

Question 4 :

What is the Latin name of Potassium?

1. Natrium
2. Kalium
3. Ferrum
4. None of these
Answer
26005

Question 5 :

How many atoms are present in PO₄^3- ion?

1. 5
2. 4
3. 1
4. 3
Answer
26006