1
JEE Main 2021 (Online) 27th August Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
Given below are two statements :

Statement I : Ethyl pent-4-yn-oate on reaction with CH3MgBr gives a 3$$^\circ$$-alcohol.

Statement II : In this reaction one mole of ethyl pent-4-yn-oate utilizes two moles of CH3MgBr.

In the light of the above statements, choose the most appropriate answer from the options given below :
A
Both Statement I and Statement II are false.
B
Statement I is false but Statement II is true.
C
Statement I is true but Statement II is false.
D
Both Statement I and Statement II are true.
2
JEE Main 2021 (Online) 27th August Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
The compound/s which will show significant intermolecular H-bonding is/are :

JEE Main 2021 (Online) 27th August Evening Shift Chemistry - Basics of Organic Chemistry Question 150 English
A
(b) only
B
(c) only
C
(a) and (b) only
D
(a), (b) and (c)
3
JEE Main 2021 (Online) 27th August Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
Which one of the following reactions will not yield propionic acid?
A
CH3CH2COCH3 + OI$$-$$/H3O+
B
CH3CH2CH3 + KMnO4(Heat), OH$$-$$/H3O+
C
CH3CH2CCl3 + OH$$-$$/H3O+
D
CH3CH2CH2Br + Mg, CO2 dry ether/H3O+
4
JEE Main 2021 (Online) 27th August Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
The correct order of ionic radii for the ions, P3$$-$$, S2$$-$$, Ca2+, K+, Cl$$-$$ is :
A
P3$$-$$ > S2$$-$$ > Cl$$-$$ > K+ > Ca2+
B
Cl$$-$$ > S2$$-$$ > P3$$-$$ > Ca2+ > K+
C
P3$$-$$ > S2$$-$$ > Cl$$-$$ > Ca2+ > K+
D
K+ > Ca2+ > P3$$-$$ > S2$$-$$ > Cl$$-$$
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