1
JEE Main 2021 (Online) 18th March Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
Deficiency of vitamin K causes :
A
Cheilosis
B
Decrease in blood clotting time
C
Increase in blood clotting time
D
Increase in fragility of RBC's
2
JEE Main 2021 (Online) 18th March Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
In the following molecule,

JEE Main 2021 (Online) 18th March Evening Shift Chemistry - Basics of Organic Chemistry Question 137 English
Hybridisation of Carbon a, b, and c respectively are :
A
sp3, sp2, sp2
B
sp3, sp, sp2
C
sp3, sp2, sp
D
sp3, sp, sp
3
JEE Main 2021 (Online) 18th March Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
JEE Main 2021 (Online) 18th March Evening Shift Chemistry - Compounds Containing Nitrogen Question 121 English
Consider the given reaction, percentage yield of :
A
B > C > A
B
A > C > B
C
C > A > B
D
C > B > A
4
JEE Main 2021 (Online) 18th March Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
The charges on the colloidal CdS sol and TiO2 sol are, respectively :
A
positive and positive
B
positive and negative
C
negative and negative
D
negative and positive
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