Atoms and Molecules
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Question 1 of 6
1. Question
Which of the following is/are true for Dalton atomic theory?
1. All matter is made up of very tiny particles called atoms.
2. Atoms do not participate in chemical reactions.
3. Atoms are indivisible particles.CorrectIncorrect -
Question 2 of 6
2. Question
Which of the following is/are correct for law of constant proportion?
1. It was given and stated by Lavoisier.
2. In a chemical substance the elements are always present in definite proportions
by mass.CorrectIncorrect -
Question 3 of 6
3. Question
Which of the following is/are correct for atomic mass?
1. It was proposed by Bohr.
2. It was explained by law of constant proportions.CorrectIncorrect -
Question 4 of 6
4. Question
Which of the following is/are correct for molecules?
1. It is a group of two or more atoms that are chemically bonded together.
2. Atoms of only the same element join to form molecules.CorrectIncorrect -
Question 5 of 6
5. Question
Which of the following are correctly matched?
1. Argon – monoatomic
2. Phosphorus – poly atomic
3. Chlorine – diatomicCorrectIncorrect -
Question 6 of 6
6. Question
Which of the following is/are correct for ions?
1. The charged species are known as ions.
2. A negatively charged ion is called an cation.
3. A group of atoms carrying a charge is known as a polyatomic ion.CorrectIncorrect