The correct order of electronegativity of hybrid orbitals of carbon is:

(1) sp>sp2<sp3             

(2) sp>sp2>sp3

(3) sp<sp2>sp3             

(4) sp<sp2<sp3

Subtopic:  Hybridisation |
 78%
NEET - 2006
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Which of the following species has a linear shape?

(1) NO2-

(2) SO2

(3) NO2+

(4) O3

Subtopic:  Hybridisation |
 71%
NEET - 2006
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Hints

Which of the following is the most basic oxide?
(1) Al2O3

(2) Sb2O3

(3) Bi2O3

(4) SeO2

Subtopic:  Acidic, Basic Character & Fajan's Rule |
 57%
NEET - 2006
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Which of the following is not a correct statement?

(1) The electron-deficient molecules can act as Lewis acids

(2) The canonical structures have no real existence

(3) Every AB5 molecule does, in fact, have square pyramid structure

(4) Multiple bonds are always shorter than corresponding single bonds

Subtopic:  Hybridisation |
 78%
NEET - 2006
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The number unpaired electrons in a paramagnetic diatomic molecule of an element with atomic number 16 is :

1. 2

2. 3

3. 4

4. 1

Subtopic:  M.O.T |
 75%
From NCERT
NEET - 2006
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NEET 2023 - Target Batch - Aryan Raj Singh

Which of the following is not isostructural with SiCl4?

(a) SCl4            (b) SO42-               (c) PO43-                 (d) NH4+

Subtopic:  Hybridisation |
 73%
NEET - 2006
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Hints

Least stable hydride is:

(1) stannane 

(2) silane 

(3)  plumbane 

(4) germane

Subtopic:  Acidic, Basic Character & Fajan's Rule |
 55%
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Correct order of strength of H-bond in the following compounds is : 

(1) H2O  > H2O2 > HF > H2S 

(2) HF  H2O2 > H2O > H2S

(3) HF >H2O > H2S > H2O2

(4) HF >H2O2 > H2O > H2S

  

Subtopic:  Octate, Isoelectronic Species, Lewis Structure & Formal Charge |
 52%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh

Molecule having non-polar as well as polar bonds but the molecule as a whole is polar:

(a) S2F2 

(b) N2O4

(c) Si2H6                                           

(d) I2Cl6

Subtopic:  Polarity |
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Hints

Choose the correct statement regarding SeOCl2 molecule:

1. It does not contain a plane of symmetry

2. 'Cl-Se^-Cl' bond is greater than 'Cl-Se^-O' bond angle

3. Lone pair has greater than 33.3% s-character

4.  Central atom used one d-orbital in bonding.

Subtopic:  V.S.E.P.R & V.B.T |
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NEET 2023 - Target Batch - Aryan Raj Singh
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