1
JEE Main 2019 (Online) 12th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The correct statement (s) among I to III with respect to potassium ions that are abundant within the cell fluid is /are
I. They activate many enzymes
II. They participate in the oxidation of glucose to produce ATP
III. Along with sodium ions they are responsible for the transmission of nerve signals
A
III only
B
I and II only
C
I and III only
D
I, II and III only
2
JEE Main 2019 (Online) 12th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The major product of the following reaction is –

JEE Main 2019 (Online) 12th January Evening Slot Chemistry - Hydrocarbons Question 117 English
A
JEE Main 2019 (Online) 12th January Evening Slot Chemistry - Hydrocarbons Question 117 English Option 1
B
JEE Main 2019 (Online) 12th January Evening Slot Chemistry - Hydrocarbons Question 117 English Option 2
C
JEE Main 2019 (Online) 12th January Evening Slot Chemistry - Hydrocarbons Question 117 English Option 3
D
JEE Main 2019 (Online) 12th January Evening Slot Chemistry - Hydrocarbons Question 117 English Option 4
3
JEE Main 2019 (Online) 12th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The correct order of atomic radii is :
A
Ho > N > Eu > Ce
B
Ce > Eu > Ho > N
C
N > Ce > Eu > Ho
D
Eu > Ce > Ho > N
4
JEE Main 2019 (Online) 12th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The major product of the following reaction is :

JEE Main 2019 (Online) 12th January Evening Slot Chemistry - Hydrocarbons Question 118 English
A
CH3CH2C$$ \equiv $$CH
B
CH3CH=C=CH2
C
JEE Main 2019 (Online) 12th January Evening Slot Chemistry - Hydrocarbons Question 118 English Option 3
D
CH3CH=CHCH2NH2
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