Atoms and Molecules in Hindi

Atoms and Molecules in Hindi. We covered all the Atoms and Molecules in Hindi MCQs in this post for free so that you can practice well for the exam.

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Atoms and Molecules Objective in Hindi for Students

Which of the following is/are correct for the observation of Rutherford's experiment? 1. Most of the fast-moving α-particles pass straight through the gold foil. 2. Some of the α-particles are deflected by the foil by small angles. 3. Surprisingly, one out of every 1200 particles appears to rebound.

(a) 1 and 2

(b) 2 and 3

(c) 1 and 3

(d) 1, 2, and 3

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Which of the following is/are true for electron distribution in shells? 1. It was suggested by Bohr. 2. The maximum number of electrons that can be accommodated in the outermost orbit is 8. 3. The maximum number of electrons present in a shell is given by the formula 2n(square).

(a) 1 and 2

(b) 2 and 3

(c) 1 and 3

(d) 1, 2, and 3

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Which of the following is/are correct for Thomson's model of an atom? 1. An atom consists of a positively charged sphere, and the electrons are embedded in it. 2. The negative and positive charges are unequal in magnitude. So, the atom as a whole is electrically neutral.

(a) Only 1

(b) Only 2

(c) Both 1 and 2

(d) Neither 1 nor 2

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Which of the following are correctly matched? 1. Electron - J.J Thomson 2. Proton - Dalton 3. Neutron - James Chadwick

(a) 1 and 2

(b) 2 and 3

(c) 1 and 3

(d) 1, 2, and 3

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Which of the following are correctly matched? 1. Mass number - denoted by M 2. Atomic number - denoted by Z 3. Isotopes - same atomic number 4. Isobar - same atomic mass

(a) 1 and 4

(b) 1, 2, and 3

(c) 1, 3, and 4

(d) 1, 2, and 4

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