1
JEE Main 2019 (Online) 10th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
Wilkinson catalyst is : (Et = C2H5)
A
[(Ph3P)3 RhCl]
B
[(Et3P)3RhCl]
C
[(Et3P)3IrCl]
D
[(Ph3P)3IrCl]
2
JEE Main 2019 (Online) 10th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
Which of the graphs shown below does not represent the relationship between incident light and the electron ejected from metal surface ?
A
JEE Main 2019 (Online) 10th January Morning Slot Chemistry - Structure of Atom Question 180 English Option 1
B
JEE Main 2019 (Online) 10th January Morning Slot Chemistry - Structure of Atom Question 180 English Option 2
C
JEE Main 2019 (Online) 10th January Morning Slot Chemistry - Structure of Atom Question 180 English Option 3
D
JEE Main 2019 (Online) 10th January Morning Slot Chemistry - Structure of Atom Question 180 English Option 4
3
JEE Main 2019 (Online) 10th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The increasing order of the pKa values of the following compounds is :

JEE Main 2019 (Online) 10th January Morning Slot Chemistry - Alcohols, Phenols and Ethers Question 153 English
A
B < C < D < A
B
B < C < A < D
C
D < A < C < B
D
C < B < A < D
4
JEE Main 2019 (Online) 10th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
If dichloromethane (DCM) and water (H2O) are used for differential extraction, which one of the following statements is correct ?
A
DCM and H2O would stay as upper and lower layer respectively in the separating funnel (S.F.)
B
DCM and H2O will make turbid/colloidal mixture
C
DCM and H2O would stay as lower and upper layer respectively in the separating funnel(S.F).
D
DCM and H2O will be miscible clearly

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