1
JEE Main 2022 (Online) 27th July Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

A sugar 'X' dehydrates very slowly under acidic condition to give furfural which on further reaction with resorcinol gives the coloured product after sometime. Sugar 'X' is

A
Aldopentose
B
Aldotetrose
C
Oxalic acid
D
Ketotetrose
2
JEE Main 2022 (Online) 27th July Morning Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

Match List I with List II.

List I List II
(A) JEE Main 2022 (Online) 27th July Morning Shift Chemistry - Chemistry in Everyday Life Question 24 English 1 (I) Anti-depressant
(B) JEE Main 2022 (Online) 27th July Morning Shift Chemistry - Chemistry in Everyday Life Question 24 English 2 (II) 550 times sweeter than cane sugar.
(C) JEE Main 2022 (Online) 27th July Morning Shift Chemistry - Chemistry in Everyday Life Question 24 English 3 (III) Narcotic analgesic
(D) JEE Main 2022 (Online) 27th July Morning Shift Chemistry - Chemistry in Everyday Life Question 24 English 4 (IV) Antiseptic

Choose the correct answer from the options given below:

A
A-IV, B-III, C-II, D-I
B
A-III, B-I, C-II, D-IV
C
A-III, B-IV, C-I, D-II
D
A-III, B-I, C-IV, D-II
3
JEE Main 2022 (Online) 27th July Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

In Carius method of estimation of halogen, $$0.45 \mathrm{~g}$$ of an organic compound gave $$0.36 \mathrm{~g}$$ of $$\mathrm{AgBr}$$. Find out the percentage of bromine in the compound.

(Molar masses : $$\mathrm{AgBr}=188 \mathrm{~g} \mathrm{~mol}^{-1} ; \mathrm{Br}=80 \mathrm{~g} \mathrm{~mol}^{-1}$$)

A
34.04%
B
40.04%
C
36.03%
D
38.04%
4
JEE Main 2022 (Online) 27th July Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Match List I with List II.

List I List II
(A) Benzenesulphonyl chloride (I) Test for primary amines
(B) Hoffmann bromamide reaction (II) Anti Saytzeff
(C) Carbylamine reaction (III) Hinsberg reagent
(D) Hoffmann orientation (IV) Known reaction of Isocyanates.

Choose the correct answer from the options given below:

A
A-IV, B-III, C-II, D-I
B
A-IV, B-II, C-I, D-III
C
A-III, B-IV, C-I, D-II
D
A-IV, B-III, C-I, D-II
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