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JEE Main 2023 (Online) 11th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
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Thin layer chromatography of a mixture shows the following observation:

JEE Main 2023 (Online) 11th April Morning Shift Chemistry - Basics of Organic Chemistry Question 71 English

The correct order of elution in the silica gel column chromatography is

A
B, A, C
B
C, A, B
C
A, C, B
D
B, C, A
2
JEE Main 2023 (Online) 10th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
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The decreasing order of hydride affinity for following carbocations is:

JEE Main 2023 (Online) 10th April Evening Shift Chemistry - Basics of Organic Chemistry Question 70 English

Choose the correct answer from the options given below:

A
A, C, D, B
B
C, A, B, D
C
A, C, B, D
D
C, A, D, B
3
JEE Main 2023 (Online) 10th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Using column chromatography, mixture of two compounds 'A' and 'B' was separated. 'A' eluted first, this indicates 'B' has

A
high Rf, weaker adsorption
B
high Rf, stronger adsorption
C
low Rf, weaker adsorption
D
low Rf, stronger adsorption
4
JEE Main 2023 (Online) 8th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
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The correct IUPAC nomenclature for the following compound is:

JEE Main 2023 (Online) 8th April Evening Shift Chemistry - Basics of Organic Chemistry Question 67 English

A
2 - Formyl -5-methylhexan-6-oic acid
B
5-Methyl-2-oxohexan-6-oic acid
C
5-Formyl -2-methylhexanoic acid
D
2-Methyl-5-oxohexanoic acid
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