1
JEE Main 2021 (Online) 1st September Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
Water sample is called cleanest on the basis of which one of the BOD values given below :
A
11 ppm
B
15 ppm
C
3 ppm
D
21 ppm
2
JEE Main 2021 (Online) 1st September Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
Calamine and Malachite, respectively, are the ores of :
A
Nickel and Aluminium
B
Zinc and Copper
C
Copper and Iron
D
Aluminium and Zinc
3
JEE Main 2021 (Online) 1st September Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
Experimentally reducing a functional group cannot be done by which one of the following reagents?
A
Pt-C/H2
B
Na/H2
C
Pd-C/H2
D
Zn/H2O
4
JEE Main 2021 (Online) 1st September Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
Which one of the following given graphs represents the variation of rate constant (k) with temperature (T) for an endothermic reaction?
A
JEE Main 2021 (Online) 1st September Evening Shift Chemistry - Chemical Kinetics and Nuclear Chemistry Question 68 English Option 1
B
JEE Main 2021 (Online) 1st September Evening Shift Chemistry - Chemical Kinetics and Nuclear Chemistry Question 68 English Option 2
C
JEE Main 2021 (Online) 1st September Evening Shift Chemistry - Chemical Kinetics and Nuclear Chemistry Question 68 English Option 3
D
JEE Main 2021 (Online) 1st September Evening Shift Chemistry - Chemical Kinetics and Nuclear Chemistry Question 68 English Option 4
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