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1
JEE Main 2021 (Online) 16th March Morning Shift
MCQ (Single Correct Answer)
+4
-1
Which among the following pairs of Vitamins is stored in our body relatively for longer duration?
A
Thiamine and Vitamin A
B
Ascorbic acid and Vitamin D
C
Thiamine and Ascorbic acid
D
Vitamin A and Vitamin D
2
JEE Main 2021 (Online) 26th February Morning Shift
MCQ (Single Correct Answer)
+4
-1
Which of the following vitamin is helpful in delaying the blood clotting?
A
Vitamin K
B
Vitamin C
C
Vitamin E
D
Vitamin B
3
JEE Main 2021 (Online) 25th February Evening Shift
MCQ (Single Correct Answer)
+4
-1
Given below are two statements :

Statement I : The identification of Ni2+ is carried out by dimethyl glyoxime in the presence of NH4OH.

Statement II : The dimethyl glyoxime is a bidentate neutral ligand.

In the light of the above statements, choose the correct answer from the options given below :
A
Statement I is false but Statement II is true.
B
Statement I is true but Statement II is false.
C
Both Statement I and Statement II are false.
D
Both Statement I and Statement II are true.
4
JEE Main 2021 (Online) 24th February Evening Slot
MCQ (Single Correct Answer)
+4
-1
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Most suitable salt which can be used for efficient clotting of blood will be :
A
Mg(HCO3)2
B
NaHCO3
C
FeCl3
D
FeSO4
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