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Q. No.| 1. | \(Z\) protons and \(A-Z\) neutrons |
| 2. | \(Z\) protons and \(A\) neutrons |
| 3. | \(A\) protons and \(Z-A\) neutrons |
| 4. | \(Z\) neutrons and \(A-Z\) protons |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAs compared to 12C atom, 14C atom has:
| 1. | two extra protons and two extra electrons |
| 2. | two extra protons but no extra electron |
| 3. | two extra neutrons and no extra electron |
| 4. | two extra neutrons and two extra electrons |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe volume occupied by an atom is greater than the volume of the nucleus by a factor of about:
1. \(10\)
2. \(10^5\)
3. \(10^{10}\)
4. \(10^{15}\)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology1. \(N^3\)
2. \(N^1\)
3. \(N^0\)
4. \(N^{-1}\)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyTwo nuclei have their mass numbers in the ratio of \(1:3.\) The ratio of their nuclear densities would be:
1. \(1:3\)
2. \(3:1\)
3. \((3)^{1/3}:1\)
4. \(1:1\)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology| 1. | \(25:16\) | 2. | \(1:1\) |
| 3. | \(4:5\) | 4. | \(5:4\) |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology| Assertion (A): | The density of nucleus is much higher than that of ordinary matter. |
| Reason (R): | Most of the mass of the atom is concentrated in the nucleus while the size of this nucleus is almost \(10^5\) times smaller. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | Both (A) and (R) are False. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology1. proton
2. neutron
3. electron
4. antineutrino
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology1. \(26.7~\text{MeV}\)
2. \(6.675~\text{MeV}\)
3. \(13.35~\text{MeV}\)
4. \(2.67~\text{MeV}\)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIf \(M(A,~Z)\), \(M_p\), and \(M_n\) denote the masses of the nucleus \(^{A}_{Z}X,\) proton, and neutron respectively in units of \(u\) \((1~u=931.5~\text{MeV/c}^2)\) and represent its binding energy \((BE)\) in \(\text{MeV}\). Then:
| 1. | \(M(A, Z) = ZM_p + (A-Z)M_n- \dfrac{BE}{c^2}\) |
| 2. | \(M(A, Z) = ZM_p + (A-Z)M_n+ BE\) |
| 3. | \(M(A, Z) = ZM_p + (A-Z)M_n- BE\) |
| 4. | \(M(A, Z) = ZM_p + (A-Z)M_n+ \dfrac{BE}{c^2}\) |
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