1
JEE Main 2020 (Online) 9th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The first and second ionisation enthalpies of a metal are 496 and 4560 kJ mol–1, respectively. How many moles of HCl and H2SO4, respectively, will be needed to react completely with 1 mole of the metal hydroxide ?
A
1 and 2
B
1 and 0.5
C
1 and 1
D
2 and 0.5
2
JEE Main 2020 (Online) 9th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
A mixture of gases O2, H2 and CO are taken in a closed vessel containing charcoal. The graph that represents the correct behaviour of pressure with time is :
A
JEE Main 2020 (Online) 9th January Evening Slot Chemistry - Surface Chemistry Question 76 English Option 1
B
JEE Main 2020 (Online) 9th January Evening Slot Chemistry - Surface Chemistry Question 76 English Option 2
C
JEE Main 2020 (Online) 9th January Evening Slot Chemistry - Surface Chemistry Question 76 English Option 3
D
JEE Main 2020 (Online) 9th January Evening Slot Chemistry - Surface Chemistry Question 76 English Option 4
3
JEE Main 2020 (Online) 9th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
Which of the following reactions will not produce a racemic product?
A
JEE Main 2020 (Online) 9th January Evening Slot Chemistry - Haloalkanes and Haloarenes Question 89 English Option 1
B
JEE Main 2020 (Online) 9th January Evening Slot Chemistry - Haloalkanes and Haloarenes Question 89 English Option 2
C
JEE Main 2020 (Online) 9th January Evening Slot Chemistry - Haloalkanes and Haloarenes Question 89 English Option 3
D
JEE Main 2020 (Online) 9th January Evening Slot Chemistry - Haloalkanes and Haloarenes Question 89 English Option 4
4
JEE Main 2020 (Online) 9th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
In the following reaction A is : JEE Main 2020 (Online) 9th January Evening Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 136 English
A
JEE Main 2020 (Online) 9th January Evening Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 136 English Option 1
B
JEE Main 2020 (Online) 9th January Evening Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 136 English Option 2
C
JEE Main 2020 (Online) 9th January Evening Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 136 English Option 3
D
JEE Main 2020 (Online) 9th January Evening Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 136 English Option 4
JEE Main Papers
2023
2021
EXAM MAP
Medical
NEET
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
CBSE
Class 12