1
NEET 2013 (Karnataka)
MCQ (Single Correct Answer)
+4
-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
A
$$\eqalign{ & {\left( {C{H_3}} \right)_2}\mathop C\limits^ \bullet \, - \,C{H_2}C{H_3}\, < C{H_3}\, - \,\mathop C\limits^ \bullet H - \,C{H_3} \cr & < C{H_3}\, - \,\mathop C\limits^ \bullet {H_2}\, < {\left( {C{H_3}} \right)_3}\mathop C\limits^ \bullet \cr} $$
B
$$\eqalign{ & C{H_3}\, - \,\mathop C\limits^ \bullet {H_2}\, < \,C{H_3}\, - \,\mathop C\limits^ \bullet HH\, - \,C{H_3}\, < \cr & {\left( {C{H_3}} \right)_2}\mathop C\limits^ \bullet \, - \,C{H_2}\, - \,C{H_3}\, < \,{\left( {C{H_3}} \right)_3}\mathop C\limits^ \bullet \cr} $$
C
$$\eqalign{ & C{H_3} - \mathop C\limits^ \bullet {H_2} < C{H_3} - \mathop C\limits^ \bullet H - C{H_3} < \cr & {\left( {C{H_3}} \right)_3}\mathop C\limits^ \bullet \, < {\left( {C{H_3}} \right)_2}\mathop C\limits^ \bullet \, - C{H_2}C{H_3} \cr} $$
D
$$\eqalign{ & {\left( {C{H_3}} \right)_3}\mathop C\limits^ \bullet \, < {\left( {C{H_3}} \right)_2}\mathop C\limits^ \bullet \, - C{H_2}C{H_3} < \cr & C{H_3} - \mathop C\limits^ \bullet H - C{H_3} < C{H_3} - \mathop C\limits^ \bullet {H_2} \cr} $$
2
NEET 2013 (Karnataka)
MCQ (Single Correct Answer)
+4
-1
Which of the following chemical system is non aromatic ?
A
NEET 2013 (Karnataka) Chemistry - Some Basic Concepts of Organic Chemistry Question 35 English Option 1
B
NEET 2013 (Karnataka) Chemistry - Some Basic Concepts of Organic Chemistry Question 35 English Option 2
C
NEET 2013 (Karnataka) Chemistry - Some Basic Concepts of Organic Chemistry Question 35 English Option 3
D
NEET 2013 (Karnataka) Chemistry - Some Basic Concepts of Organic Chemistry Question 35 English Option 4
3
NEET 2013 (Karnataka)
MCQ (Single Correct Answer)
+4
-1
In the following reaction :
NEET 2013 (Karnataka) Chemistry - Hydrocarbons Question 38 English
Product 'P' will not give
A
Tollen's reagent test
B
Brady's reagent test
C
Victor Meyer test
D
Iodoform test
4
NEET 2013 (Karnataka)
MCQ (Single Correct Answer)
+4
-1
Given :
NEET 2013 (Karnataka) Chemistry - Some Basic Concepts of Organic Chemistry Question 27 English
I and II are
A
identical
B
a pair of conformers
C
a pair of geometrical isomers
D
a pair of optical isomers
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