1
COMEDK 2023 Morning Shift
MCQ (Single Correct Answer)
+1
-0

Acetophenone when reacted with a base, $$\mathrm{C}_2 \mathrm{H}_5 \mathrm{ONa}$$, yields a stable compound which has the structure

A
COMEDK 2023 Morning Shift Chemistry - Aldehyde and Ketone Question 24 English Option 1
B
COMEDK 2023 Morning Shift Chemistry - Aldehyde and Ketone Question 24 English Option 2
C
COMEDK 2023 Morning Shift Chemistry - Aldehyde and Ketone Question 24 English Option 3
D
COMEDK 2023 Morning Shift Chemistry - Aldehyde and Ketone Question 24 English Option 4
2
COMEDK 2023 Morning Shift
MCQ (Single Correct Answer)
+1
-0

Gabriel's synthesis is used frequency for the preparation of which of the following?

A
$$1^{\circ}$$ amines
B
$$1^{\circ}$$ alcohols
C
$$3^{\circ}$$ amines
D
$$3^{\circ}$$ alcohols
3
COMEDK 2023 Morning Shift
MCQ (Single Correct Answer)
+1
-0

The product P in the reaction,

COMEDK 2023 Morning Shift Chemistry - Compounds Containing Nitrogen Question 20 English
A
COMEDK 2023 Morning Shift Chemistry - Compounds Containing Nitrogen Question 20 English Option 1
B
COMEDK 2023 Morning Shift Chemistry - Compounds Containing Nitrogen Question 20 English Option 2
C
COMEDK 2023 Morning Shift Chemistry - Compounds Containing Nitrogen Question 20 English Option 3
D
COMEDK 2023 Morning Shift Chemistry - Compounds Containing Nitrogen Question 20 English Option 4
4
COMEDK 2023 Morning Shift
MCQ (Single Correct Answer)
+1
-0

Pick out the incorrect statement(s) from the following.

1. Glucose exists in two different crystalline forms, $$\alpha$$-D-glucose and $$\beta$$-D-glucose.

2. $$\alpha$$-D-glucose and $$\beta$$-D-glucose are anomers.

3. $$\alpha$$-D-glucose and $$\beta$$-D-glucose are enantiomers.

4. Cellulose is a straight chain polysaccharide made of only $$\beta$$-D-glucose units.

5. Starch is a mixture of amylase and amylopectin, both contain unbranched chain of $$\alpha$$-D-glucose units.

A
1 and 2 only
B
2 and 3 only
C
3 and 4 only
D
3 and 5 only
EXAM MAP