Orbital that is used by oxygen atom to form sigma bond with other oxygen atom in O2 molecule is :

1. Pure p-orbital.

2. sp2-hybridorbital.

3. sp3-hybrid orbital.

4. sp-hybrid orbital.

Subtopic:  Covalent Bond |
 51%
Level 3: 35%-60%
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The geometry and the dipole moment of H2S is:

1. Angular (distorted tetrahedral) and non-zero. 2. Angular and zero.
3. Linear and zero. 4. Linear and non-zero.

Subtopic:  Hybridisation |
 78%
Level 2: 60%+
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Match the oxide given in Column I with its property given in Column II:

Column I Column II
(i) Na2O (a) Neutral
(ii) Al2O3 (b) Basic
(iii) N2O (c) Acidic
(iv) Cl2O7 (d) Amphoteric
 

Which of the following options is correct?

(i) (ii) (iii) (iv)
1. (b) (a) (d) (c)
2. (c) (b) (a) (d)
3. (a) (d) (b) (c)
4. (b) (d) (a) (c)

Subtopic:  Acidic, Basic Character & Fajan's Rule |
 82%
Level 1: 80%+
NEET - 2019
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Which of the following is a paramagnetic compound?

1. N2

2. H2

3. Li2

4. O2

Subtopic:  M.O.T |
 86%
Level 1: 80%+
NEET - 2019
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Arrange the following species in increasing order of their dipole moments:
NH3,NF3,BF3,H2O
 

1. NH3<BF3<NF3<H2O

2. BF3<NF3<NH3<H2O

3. BF3<NH3<NF3<H2O

4. H2O<NF3<NH3<BF3

Subtopic:  Polarity |
 75%
Level 2: 60%+
NEET - 2019
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The number of hydrogen bonded water molecules(s) associated with \(\mathrm{C u S O_{4} . 5 H_{2} O}\) is:

1. 3 2. 1
3. 2 4. 5
Subtopic:  van der Waal Force & Hydrogen Bonding |
 54%
Level 3: 35%-60%
NEET - 2019
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Which of the following atomic orbitals would have the greatest overlap to form the strongest covalent bond?

1. 2s-2s (σ) 2. 2s-2p (σ)
3. 2p-2p (π) 4. 2p-2p (σ)
Subtopic:  Covalent Bond |
Level 3: 35%-60%
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 The 'S' atom among the following that does not have \(\mathrm{sp}^3\) hybridization is

1. \(\mathrm{SO}^{2-}_4\) 2. \(\mathrm{SF}_4\)
3. \(\mathrm{SF}_2\) 4. \(\mathrm{S}_8\)
Subtopic:  Hybridisation |
 68%
Level 2: 60%+
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 A bent T-shape molecule among the following is:

1. \(\mathrm{ICl}^-_4\)
2. \(\mathrm{PCl}_3\)
3. \(\mathrm{BrF}_3\)
4. \(\mathrm{I}^-_3\)

Subtopic:  Hybridisation |
 70%
Level 2: 60%+
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Which of the following species deviates from the octet rule?

1. CO32-

2. H2SO3

3. PCl3

4. O3

Subtopic:  Octate, Isoelectronic Species, Lewis Structure & Formal Charge |
 54%
Level 3: 35%-60%
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