Select pair of compound in which both have differant hybridization but have same molecular geomatery:

(a)  BF3,BrF3       

(b) ICI2,BeCI2   

(c)BCI3,PCI3   

(d) PCI3,NCI3

Concept Questions :-

Hybridisation
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Which molecule does not exist?

(a) OF2

(b) OF4

(c) SF2

(d) SF4

Concept Questions :-

Covalent Bonding
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A compound contains three elements A, B and C , if the oxidation of A = +2, B = +5 Aand C = -2, the possible formula of the compound is:

 (a) A3(B4C)2

 (b) A3(BC4)2

 (c) A2(BC3)2

 (d) ABC2

Concept Questions :-

Types of Bonding
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The spacies having no pπ-pπ bond but has bond order equal to that of O2

(a) CIO-3      (b) PO43-   

(c)SO42-    (d) XeO3

Concept Questions :-

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Which pair of atom form strongest ionic bond?

(a) Al and As

(b) Al and N

(c) Al and Se

(d) AL and O

Concept Questions :-

Ionic Bonding
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The correct order of increasing s-character (in percentage) in the hybrid orbitals of the following molecules/ions is:

(i) CO32-           (ii) XeF4                (iii) I3                     (iv) NCI3                         (v) BeCl2

(a) (ii)<(iii)<(iv)<(i)<(v)                             (b) (ii)<(iv)<(iii)<(v)<(i)

(c) (iii)<(ii)<(i)<(v)<(iv)                             (d) (ii)<(iv)<(iii)<(i)<(v)

Concept Questions :-

Hybridisation
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How many resonance forms can be written for the nitrate ion, (NO3-)?

(a) 1

(b) 2

(c) 3

(d) 4

Concept Questions :-

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Which of the following molecule will have all equal XF bond length? (where X= central atom)

(a) SOCl2F2                                                     (b) SeF4(c) PBr2F3                                                          (d) IF7

Concept Questions :-

Hybridisation
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Which of the following fact is directly explained by the statement 'oxygen is a simillar atom than sulpher'?

(a) H2O boils at a much higher tempreture than H2S

(b) H2S undergoes intermolecure hydrogen bonding

(c) H2O is liquid and H2S is gas at room tempreture 

(d) SH bond is longer than OH bond

Concept Questions :-

Hybridisation
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Among given species identify the isostructural pairs:

(a) NF3  and BF3

(b) BF4- and NH4+

(c) BCl3 and BrCl3

(d) NH3 and NO3-

Concept Questions :-

Covalent Bonding
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