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1
JEE Main 2019 (Online) 9th April Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The maximum number of possible oxidation states of actinoides are shown by :
A
nobelium (No) and lawrencium (Lr)
B
actinium (Ac) and thorium (Th)
C
neptunium (Np) and plutonium (Pu)
D
berkelium (Bk) and californium (Cf)
2
JEE Main 2019 (Online) 9th April Evening Slot
MCQ (Single Correct Answer)
+4
-1
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The major product of the following reaction is: JEE Main 2019 (Online) 9th April Evening Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 224 English
A
JEE Main 2019 (Online) 9th April Evening Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 224 English Option 1
B
JEE Main 2019 (Online) 9th April Evening Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 224 English Option 2
C
JEE Main 2019 (Online) 9th April Evening Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 224 English Option 3
D
JEE Main 2019 (Online) 9th April Evening Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 224 English Option 4
3
JEE Main 2019 (Online) 9th April Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
Which of the following potential energy (PE) diagrams represents the SN1 reaction?
A
JEE Main 2019 (Online) 9th April Evening Slot Chemistry - Hydrocarbons Question 132 English Option 1
B
JEE Main 2019 (Online) 9th April Evening Slot Chemistry - Hydrocarbons Question 132 English Option 2
C
JEE Main 2019 (Online) 9th April Evening Slot Chemistry - Hydrocarbons Question 132 English Option 3
D
JEE Main 2019 (Online) 9th April Evening Slot Chemistry - Hydrocarbons Question 132 English Option 4
4
JEE Main 2019 (Online) 9th April Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
In the following reaction JEE Main 2019 (Online) 9th April Evening Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 225 English Rate of the reaction is the highest for :
A
Propanal as substrate and methanol in stoichiometric amount.
B
Acetone as substrate and methanol in stoichiometric amount
C
Propanal as substrate and methanol in excess
D
Acetone as substrate and methanol in excess

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