Question 1 :
{tex}\mathrm{Assertion}{/tex} : Propadiene is optically active.<br>{tex}\mathrm{Reason}{/tex} : Propadiene has a plane of symmetry.<br>
Question 3 : Which of the following applies in the reaction,<br>{tex} \mathrm { CH } _ { 3 } \mathrm { CHBr } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 3 } \stackrel { \text { alc.KOH } } { \longrightarrow } {/tex}<br><img style='object-fit:contain' src="https://storage.googleapis.com/teachmint/question_assets/JEE%20Main/5dd2220382cf856e114774f1">
Question 4 :
Elimination of bromine from {tex} 2 {/tex} -bromobutane results in the<br>formation of<br>
Question 6 :
Which of the following compound will give blood red colour while doing the Lassaigne's test for {tex}\mathrm N {/tex}?
Question 7 :
Geometry of reaction intermediate in {tex} S N ^ { 1 } {/tex} reaction is
Question 8 :
The number of structural isomers for {tex} \mathrm {C _ { 6 } H _ { 14 }} {/tex} is
Question 9 :
{tex}\mathrm{Assertion}{/tex} : Staggered form is less stable than the eclipsed form.<br>{tex}\mathrm{Reason}{/tex} : The conformation in which the bond pairs of two central atoms are very far from one another is called staggered form.<br>
Question 10 :
What is the possible number of optical isomers for a compound containing {tex} 2- {/tex} dissimilar asymmetric carbon atom
Question 11 : Among the following compounds ( {tex} ( 1-111 ) {/tex} ) the correct order of reaction with electrophilic reagent is <img style='object-fit:contain' src="https://storage.googleapis.com/teachmint/question_assets/JEE%20Main/5dd2513a82cf856e114777c4">
Question 12 : The number of stereoisomers possible for a compound of the molecular formula <br><img style='object-fit:contain' src='https://storage.googleapis.com/teachmint/question_assets/JEE%20Main/5e799600d3f9ab617fcdc9f7' height='31' width='' > is :
Question 13 :
Out of the following, the alkene that exhibits obtical isomerism is
Question 16 :
Which of the following contains three pairs of electrons in valence shell?<br>
Question 17 :
A solution of 9 ( - ) -1 - chloro -1- phenylethane in toluene racemises slowly in the presence of a small amount of SbCl<sub>5</sub>, due to the formation of
Question 18 : The reaction <br><img style='object-fit:contain' src='https://storage.googleapis.com/teachmint/question_assets/JEE%20Main/5e7995f6adb2ea6185a77841' height='86' width='' ><br>is fastest when X is <br>
Question 19 :
Which of the following is a characteristic feature of a free radical? <br>
Question 20 :
In carbonium ion the carbon bearing the positive charge in the
Question 22 :
Diethyl ether is not associated with which one of these isomers
Question 32 :
An organic compound {tex} ^ { 1 } C H _ { 3 } - ^ { 2 } C H _ { 2 } - ^ { 3 } C H _ { 2 } - ^ { 4 } C H _ { 2 } - ^ { 5 } C H _ { 2 } - ^ { 6 } C H _ { 2 } - ^ { 7 } C H _ { 3 } {/tex} To make it chiral compound the attack should be on which carbon atom
Question 34 :
The number of {tex} s p ^ { 2 } {/tex} hybridised carbon in one benzyne is
Question 35 :
A mixture contains four solid organic compounds {tex} A , B , C {/tex} and {tex} D{/tex}. On heating, only {tex} C {/tex} changes from solid to vapour state. The compound ({tex} C{/tex}) can be separated from the mixture by
Question 38 :
The functional group, which is found in amino acid is <br>
Question 40 : For the reaction 2P + Q <img style='object-fit:contain' src='https://storage.googleapis.com/teachmint/question_assets/JEE%20Main/5e7995acd3f9ab617fcdc861' height='15' width='20' > R, 8 mol of P and 5 mol of Q will produce<br>
Question 48 :
Due to the presence of an unpaired electron, free radicals are :
Question 49 :
In lassaigne's test for N, S and halogens, the organic compound is. <br>
