NEET 2013 (Karnataka) | Some Basic Concepts of Organic Chemistry Question 55 | Chemistry

What is the hybridisation state of benzyl carbonium ion?

NEET 2013 (Karnataka) Chemistry - Some Basic Concepts of Organic Chemistry Question 80 English

NEET 2013 (Karnataka) Chemistry - Some Basic Concepts of Organic Chemistry Question 80 English

sp²

spd²

sp²d

sp³

NEET 2013 (Karnataka)

MCQ (Single Correct Answer)

-1

Which of the following chemical system is non aromatic ?

NEET 2013 (Karnataka) Chemistry - Some Basic Concepts of Organic Chemistry Question 50 English Option 1

NEET 2013 (Karnataka) Chemistry - Some Basic Concepts of Organic Chemistry Question 50 English Option 2

NEET 2013 (Karnataka)

MCQ (Single Correct Answer)

-1

Arrange the following in increasing order of stability
NEET 2013 (Karnataka) Chemistry - Some Basic Concepts of Organic Chemistry Question 81 English

NEET 2013 (Karnataka) Chemistry - Some Basic Concepts of Organic Chemistry Question 81 English

5 < 4 < 3 < 1< 2

4 < 5 < 3 < 1 < 2

1 < 5 < 4 < 3 < 2

5 < 4 < 3 < 2 < 1

NEET 2013 (Karnataka)

MCQ (Single Correct Answer)

-1

Homolytic fission of the following alkanes forms free radicals CH₃ $$-$$ CH₃, CH₃ $$-$$ CH₂ $$-$$ CH₃, (CH₃)₂CH $$-$$ CH₃, CH₃ $$-$$ CH₂ $$-$$CH(CH₃)₂.
Increasing order of stability of the radicals is

$$\eqalign{ & {\left( {C{H_3}} \right)_2}\mathop C\limits^ \bullet \, - \,C{H_2}C{H_3}\, < C{H_3}\, - \,\mathop C\limits^ \bullet H - \,C{H_3} \cr & < C{H_3}\, - \,\mathop C\limits^ \bullet {H_2}\, < {\left( {C{H_3}} \right)_3}\mathop C\limits^ \bullet \cr} $$

$$\eqalign{ & C{H_3}\, - \,\mathop C\limits^ \bullet {H_2}\, < \,C{H_3}\, - \,\mathop C\limits^ \bullet HH\, - \,C{H_3}\, < \cr & {\left( {C{H_3}} \right)_2}\mathop C\limits^ \bullet \, - \,C{H_2}\, - \,C{H_3}\, < \,{\left( {C{H_3}} \right)_3}\mathop C\limits^ \bullet \cr} $$

$$\eqalign{ & C{H_3} - \mathop C\limits^ \bullet {H_2} < C{H_3} - \mathop C\limits^ \bullet H - C{H_3} < \cr & {\left( {C{H_3}} \right)_3}\mathop C\limits^ \bullet \, < {\left( {C{H_3}} \right)_2}\mathop C\limits^ \bullet \, - C{H_2}C{H_3} \cr} $$

$$\eqalign{ & {\left( {C{H_3}} \right)_3}\mathop C\limits^ \bullet \, < {\left( {C{H_3}} \right)_2}\mathop C\limits^ \bullet \, - C{H_2}C{H_3} < \cr & C{H_3} - \mathop C\limits^ \bullet H - C{H_3} < C{H_3} - \mathop C\limits^ \bullet {H_2} \cr} $$

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