Which of the following species has a linear shape?

(a) NO2-          (b) SO2            (c) NO2+              (d) O3

Concept Questions :-

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

(b) Sb2O3

(c) Bi2O3

(d) SeO2

Concept Questions :-

Acid, Base and Fajan's Rule
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Which of the following is not a correct statement?

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

(b) The canonical structures have no real existence

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

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

Concept Questions :-

Hybridisation
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The number unpaired electrons in a paramagnetic diatomic molecule of an element with atomic number 16 is :

(a) 2

(b) 3

(c) 4

(d) 1

Concept Questions :-

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Which of the following is not isostructural with SiCl4?

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

Concept Questions :-

Hybridisation
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Least stable hydride is:

(a) stannane  (b) silane  (c)  plumbane  (d) germane

Concept Questions :-

Acid, Base and Fajan's Rule
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The correct order of strength of H-bond in the following compound?

(a) H2O>H2O2>HF>H2S

(b)HFH2O2>H2O>H2S

(c)HF>H2O>H2S>H2O2

(d)HF>H2O2>H2O>H2S

  

Concept Questions :-

Hydrogen Bonding
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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

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Choose the correct statement regarding SeOCl2 molecule:

(a) it does not contain plane of symmetry

(b) 'Cl-Se^-Cl' bond is greater than 'Cl-Se^-O' bond angle

(c) Lone pair has greater than 33.3% s-character

(d) Central atom used one d-orbital in bonding

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Which of the following compounds can form H-bonding with each other? 

(a) CH3 COOH and H2O

(b) Phenol and CH4

(c) CHF3 and acetone

(d) PH3 and HF

Concept Questions :-

Hydrogen Bonding
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