Which of the following statement is correct in the context of the allene molecules, C3H4?

(a) The central carbon is Sp hybridized

(b) The terminal carbon atoms are sp2 hybridized

(c) The planes containing the CH2 groups are  mutually perpendicular to permit the formations two separate π - bonds 

(d) All are correct 

Concept Questions :-

Hybridisation
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Select the incorrect statement about N2F4 and N2H4:

(i) In N2F4, d-orbitals are contracted by electronegative fluorine atoms, but d-orbitals contaraction is not possible by H-atom in N2H4

(ii) The N-N bond energy in N2F4 is lesser than N-N bond energy in N2H4

(iii) The N-N bond length in N2F4 is more than that in N2H4

(iv) The N-N bond length in N2F4 is less than that in N2H4

Choose the correct code:

(a) (i),(ii) and (iii)                                        (b) (i) and (iii)

(c) (ii) and (iv)                                            (d) (ii) and (iii)

Concept Questions :-

Covalent Bonding
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The shape of XeF3+ is :

(a) Trigonal planar

(b) Pyramidal

(c) Bent T-shape 

(d) See- saw

Concept Questions :-

Hybridisation
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Which of the following shape are not possible for possible value of 'n' in XeFn molecule?

(a) Linear 

(b) Square planar 

(c) Trigonal planar

(d) Capped octahedral

Concept Questions :-

Hybridisation
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Which of the following compound has maximum "CC" single bond length?

(a)CH2CHCCH       (b)HCCCCH 

(c) CH3CHCH2        (d)CH2CHCHCH2

Concept Questions :-

Types of Bonding
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BeCl2 is not isostructural with :

(a)ICl2-

(b) C2H2

(c) XeF2

(d) GeCl2

Concept Questions :-

Hybridisation
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Which statement is true about the most stable Lewis structure for CS2 ?

(a) There are no lone pairs in molecule 

(b) All bonds are double bonds 

(c) The central atom does not have an octet of electrons 

(d) A sulfur atom must be the central atom for the stucture to be stable 

Concept Questions :-

Covalent Bonding
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Minimum FSF bond angle present in:

(a) SSF2                                                      (b) SF6

(c) SF2                                                        (d) F3SSF

Concept Questions :-

Hybridisation
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SbF5 reacts with XeF4 and XeF6 to form ionic compounds XeF3+ SbF6- and XeF5+ SbF6- then molecular shape of XeF3+ ion and XeF5+ ion respectively :

(a) Square pyramidal, T-shaped 

(b) Bent T-shape, Square pyramidal

(c) See- saw , square pyramidal 

(d) Square pyramidal , See-saw

Concept Questions :-

Hybridisation
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In which of the following species maximum atom can lie in same plane? 

(a) XeF2o2

(b) PCl5

(c)AsH4+

(d) XeF4

Concept Questions :-

Hybridisation
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