1
AIEEE 2004
MCQ (Single Correct Answer)
+4
-1
Which base is present in RNA but not in DNA?
A
Uracil
B
Thymine
C
Guanine
D
Cytosine
2
AIEEE 2004
MCQ (Single Correct Answer)
+4
-1
Coordination compound have great importance in biological systems. In this context which of the following statements is incorrect?
A
Chlorophylls are green pigments in plants and contains calcium
B
Carboxypeptidase – A is an enzyme and contains zinc
C
Cyanocobalamin is B12 and contains cobalt
D
Haemoglobin is the red pigment of blood and contains iron
3
AIEEE 2004
MCQ (Single Correct Answer)
+4
-1
Which one of the following reduced with zinc and hydrochloric acid to give the corresponding hydrocarbon?
A
Ethyl acetate
B
Butan -2-one
C
Acetamide
D
Acetic acid
4
AIEEE 2004
MCQ (Single Correct Answer)
+4
-1
The correct order of magnetic moments (spin only values in B.M.) among is :
(Atomic numbers: Mn = 25; Fe = 26, Co =27)
A
[MnCl4]2- > [CoCl4]-2 > [Fe(CN)6]-4
B
[Fe(CN)6]-4 > [CoCl4]2- > [MnCl4]2-
C
[Fe(CN)6]4- > [MnCl4]2- > [CoCl4]2-
D
[MnCl4]2- > [Fe(CN)6]4- > [CoCl4]2-

JEE Main Papers

All year-wise previous year question papers

2023
2021