The ratio of σ / π bond  in tetracyano ethylene is: 

(1) 2:1

(2) 1:1

(3) 1:2 

(4) none of these 

Subtopic:  Types of Chemical Bond |
 71%
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NEET 2023 - Target Batch - Aryan Raj Singh
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Which of the following statement is correct in the context of the allene molecules, C3H4?

1. The central carbon is Sp hybridized

2. The terminal carbon atoms are sp2 hybridized

3. The planes containing the CH2 groups are  mutually perpendicular to permit the formations of two separate π - bonds 

4. All are correct 

Subtopic:  Hybridisation |
 78%
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NEET 2023 - Target Batch - Aryan Raj Singh
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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)

Subtopic:  Covalent Bond |
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NEET 2023 - Target Batch - Aryan Raj Singh
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The shape of XeF3+ is:

1. Trigonal planar 2. Pyramidal
3. Bent T-shape  4. See-saw
Subtopic:  V.S.E.P.R & V.B.T |
 70%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

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

(1) Linear 

(2) Square planar 

(3) Trigonal planar

(4) Capped octahedral

Subtopic:  Hybridisation |
 66%
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NEET 2023 - Target Batch - Aryan Raj Singh
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Which of the following compound has a maximum "CC" single bond length?

1. CH2CHCCH        
2. HCCCCH  
3. CH3CHCH2        
4. CH2CHCHCH2

Subtopic:  Types of Chemical Bond |
 60%
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NEET 2023 - Target Batch - Aryan Raj Singh
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BeCl2 is not isostructural with :

(1)ICl2-

(2) C2H2

(3) XeF2

(4) GeCl2

Subtopic:  Hybridisation |
 60%
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NEET 2023 - Target Batch - Aryan Raj Singh
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Which statement is true about the most stable Lewis structure for CS2 ?

(1) There are no lone pairs in molecule 

(2) All bonds are double bonds 

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

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

Subtopic:  Covalent Bond |
 66%
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NEET 2023 - Target Batch - Aryan Raj Singh
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Minimum FSF bond angle present in:

(1) SSF2                                                      

(2) SF6

(3) SF2                                                       

(4) F3SSF

Subtopic:  Hybridisation |
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NEET 2023 - Target Batch - Aryan Raj Singh
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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 :

(1) Square pyramidal, T-shaped 

(2) Bent T-shape, Square pyramidal

(3) See- saw , square pyramidal 

(4) Square pyramidal , See-saw

Subtopic:  Hybridisation |
 83%
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NEET 2023 - Target Batch - Aryan Raj Singh
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