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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMatch list-I with list-II:
List-I Elements |
List-II Atomic radii (pm) |
||
(a) | O | (i) | 88 |
(b) | C | (ii) | 74 |
(c) | B | (iii) | 66 |
(d) | N | (iv) | 77 |
(a) | (b) | (c) | (d) | |
1. | (ii) | (i) | (iv) | (iii) |
2. | (iv) | (iii) | (ii) | (i) |
3. | (i) | (iv) | (iii) | (ii) |
4. | (iii) | (iv) | (i) | (ii) |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIdentify the incorrect match.
Name | IUPAC Official Name |
a. Unnilunium | (i) Mendelevium |
b. Unniltrium | (ii) Lawrecium |
c. Unnilhexium | (iii) Seaborgium |
d. Unununnium | (iv) Darmstadtium |
1. (b), (ii)
2. (c), (iii)
3. (d), (iv)
4. (a), (i)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMatch the element in column I with that in column II.
Column-I | Column-II |
(a) Copper | (i) Non-metal |
(b) Fluorine | (ii) Transition metal |
(c) Silicon | (iii) Lanthanoid |
(d) Cerium | (iv) Metalloid |
(a) | (b) | (c) | (d) | |
1. | (ii) | (iv) | (i) | (iii) |
2. | (ii) | (i) | (iv) | (iii) |
3. | (iv) | (iii) | (i) | (ii) |
4. | (i) | (ii) | (iii) | (iv) |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyFor the second period elements, the correct increasing order of first ionisation enthalpy is:
1. Li<Be<B<C<O<N<F<Ne
2. Li<Be<B<C<N<O<F<Ne
3. Li<B<Be<C<O<N<F<Ne
4. Li<B<Be<C<N<O<F<Ne
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMagnesium reacts with an element (X) to form an ionic compound. If the ground state electronic configuration of (X) is , the simplest formula for this compound is :
1.
2.
3.
4.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe incorrect match among the following is -
1. B < C < N < O (increasing first ionisation enthalpy)
2. I < Br < F < Cl (increasing electron gain enthalpy)
3. Li < Na < K < Rb (increasing metallic radius)
4. Al3+ < Mg2+ < Na+ <F- (increasing ionic size)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich one of the following orders is correct for the bond dissociation enthalpy of halogen
molecules?
1. Cl2>Br2>F2>I2
2. Br2>I2>F2>Cl2
3. F2>Cl2>Br2>I2
4. I2>Br2>Cl2>F2
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe correct sequence of increasing radii is -
1. Ar < K+ < Ca2+
2. Ca2+ < Ar < K+
3. Ca2+ < K+ < Ar
4. K+ < Ar < Ca2+
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe formation of the oxide ion O2-(g), from oxygen atom requires first an exothermic and
then an endothermic step as shown below,
Thus, process of formation of O2- in gas phase is unfavourable even though O2- is
isoelectronic with neon. It is due to the fact that
1. electron repulsion outweighs the stability gained by achieving noble gas configuration
2. O- ion has comparatively smaller size than oxygen atom
3. Oxygen is more electronegative
4. addition of electron in oxygen result in large size of the ion
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology