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General Organic Chemistry MCQ -1 (Advanced) - JEE MCQ


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15 Questions MCQ Test - General Organic Chemistry MCQ -1 (Advanced)

General Organic Chemistry MCQ -1 (Advanced) for JEE 2024 is part of JEE preparation. The General Organic Chemistry MCQ -1 (Advanced) questions and answers have been prepared according to the JEE exam syllabus.The General Organic Chemistry MCQ -1 (Advanced) MCQs are made for JEE 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for General Organic Chemistry MCQ -1 (Advanced) below.
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General Organic Chemistry MCQ -1 (Advanced) - Question 1

Which of the following statements are incorrect with respect to the allotropes of carbon? 
I) Diamond is extremely hard while graphite is soft 
II) Diamond is ionic but graphite is covalent 
III) Diamond is a non-conductor but graphite is a good conductor of electricity
IV) Diamond has a layered structure while graphite has a network structure 

Detailed Solution for General Organic Chemistry MCQ -1 (Advanced) - Question 1
Here the correct answer is C as in the question we can see that there is S. I. R effect so the c 1 and c5 bond lengths are of the same length and longer than the c3 bond length.... M.
*Multiple options can be correct
General Organic Chemistry MCQ -1 (Advanced) - Question 2

Choose the incorrect statement:

Detailed Solution for General Organic Chemistry MCQ -1 (Advanced) - Question 2

In salicylic acid, there is H-bonding in conjugate base.

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*Multiple options can be correct
General Organic Chemistry MCQ -1 (Advanced) - Question 3

In which of the following pairs the first one is the stronger base than second.

Detailed Solution for General Organic Chemistry MCQ -1 (Advanced) - Question 3

 

 

*Multiple options can be correct
General Organic Chemistry MCQ -1 (Advanced) - Question 4

Which statement among the followijng are corect?

*Multiple options can be correct
General Organic Chemistry MCQ -1 (Advanced) - Question 5

Resonance structures of a molecule should have.

Detailed Solution for General Organic Chemistry MCQ -1 (Advanced) - Question 5
Resonating structures must have identical arrangements of atoms, nearly same energy content and same number of unpaired electrons .
General Organic Chemistry MCQ -1 (Advanced) - Question 6

The correct heat of hydrogenation order is (p) 1,3-Pentadiene (q) 1,3-Butadiene (r) 2,3-Dimethyl-1, 3-butadiene (s) Propadiene

Detailed Solution for General Organic Chemistry MCQ -1 (Advanced) - Question 6

 

 

 

General Organic Chemistry MCQ -1 (Advanced) - Question 7

An organic compound on analysis gave C = 48 gm, H =  8 gm and N = 56 gm. Volume of 1.0 g of the compound was found to be 200 ml at NTP. Molecular formula of the compound is

*Multiple options can be correct
General Organic Chemistry MCQ -1 (Advanced) - Question 8

The most stable resonating structure of following compound is O = 

Detailed Solution for General Organic Chemistry MCQ -1 (Advanced) - Question 8

Maximum charge separation stability increases

 

Then and is (D).

*Multiple options can be correct
General Organic Chemistry MCQ -1 (Advanced) - Question 9

2.34 The correct resonation structre of 1, 3-butadiene is -

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General Organic Chemistry MCQ -1 (Advanced) - Question 10

The correct stable resonating structure of benzene is -

General Organic Chemistry MCQ -1 (Advanced) - Question 11

Identify the correct sequence according to electronegativity.

Detailed Solution for General Organic Chemistry MCQ -1 (Advanced) - Question 11

In the sequence ” F` > OH` > NH2` > CH3`”, F’ is the most stable one and CH3‘ is the least stable one, as the stability of the anions increases on moving towards the right of the periodic table.

General Organic Chemistry MCQ -1 (Advanced) - Question 12

Match the following

 

p) m is more
(q) m is less
(r) Larger C– N compared to C – NO2
(s) Larger C – N bond largteer compared to aniline

Detailed Solution for General Organic Chemistry MCQ -1 (Advanced) - Question 12

Stearic inhibition of resonance cause no change in bond length.

General Organic Chemistry MCQ -1 (Advanced) - Question 13

Match the pKa values with the given compounds

(p) 4
(q) 9
(r) 5
(s) 0.74

Detailed Solution for General Organic Chemistry MCQ -1 (Advanced) - Question 13

Remember

NH is acidic instead of basic due to three resonating of  Conjugate base. As Shown in the adjacent diagram 

It shows that conjugate base is very stable. The basic site in phthalimide is 0 not be N atom. Again it is due to resonance stabilisation

General Organic Chemistry MCQ -1 (Advanced) - Question 14

Partial reduction of phenyl cyanide with stannous chloride and passing dry HCl gas in ether solution followed by hydrolysis of the aldimine stannic chloride with water to form benzaldehyde is called as which of the following method of preparation of benzaldehyde?

Detailed Solution for General Organic Chemistry MCQ -1 (Advanced) - Question 14

Partial reduction of phenyl cyanide with stannous chloride and passing dry HCl gas in ether solution followed by hydrolysis of the aldimine stannic chloride with water to form benzaldehyde is called as Stephan’s reaction.

General Organic Chemistry MCQ -1 (Advanced) - Question 15

 The number of sigma and pi-bonds in 1-butene 3-yne are

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