The number of electrons in the species , are respectively
1. 15, 2, 1
2. 15, 1, 2
3. 1, 2, 15
4. 2, 1, 15
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe maximum number of neutrons are present in the nuclei of
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe complete symbol for the atom with the given atomic number (Z) and atomic mass (A) would be, respectively,
i. Z = 17 , A = 35.
ii. Z = 92 , A = 233.
iii. Z = 4 , A = 9.
1.
2.
3.
4.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyProperty which is same for the following species is:
N3–, O2–, F–, Na+, Mg2+ and Al3+
1. Ionic radii
2. Number of electrons
3. Nuclear charge
4. None of the above
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAn atom of an element contains 29 electrons and 35 neutrons. The number of protons in the element would be
1. 29
2. 35
3. 6
4. 64
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe charge on the oil drop is –1.282 × 10–18C. The number of electrons present in it would be
1. 15
2. 8
3. 2
4. 6
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe number of protons, neutrons and electrons in , respectively, are:
1. 104, 71 and 71
2. 71, 71 and 104
3. 175, 104 and 71
4. 71, 104 and 71
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following has greater number of electrons than neutrons?
1. Al3+
2. O2-
3. F-
4. C
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe number of electrons in 19 K with quantum numbers n=3; l=0 is/are
1. 1
2. 2
3. 4
4. 3
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAssertion: Zn(ll) salts are diamagnetic.
Reason: Zn2+ ion has one unpaired electron.
1. Both the assertion and the reason are true and the reason is the correct explanation of the assertion.
2. Both the assertion and the reason are true but the reason is not the correct explanation of the assertion.
3. The assertion is true, but the reason is incorrect.
4. Both the assertion and the reason are false statements.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology