1
JEE Main 2020 (Online) 8th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
For the following Assertion and Reason, the correct option is :

Assertion : The pH of water increases with increase in temperature.

Reason : The dissociation of water into H+ and OH is an exothermic reaction.
A
Both assertion and reason are false.
B
Both assertion and reason are true, but the reason is not the correct explanation for the assertion.
C
Both assertion and reason are true, and the reason is the correct explanation for the assertion.
D
Assertion is not true, but reason is true.
2
JEE Main 2020 (Online) 8th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
Which of the following compounds is likely to show both Frenkel and Schottky defects in its crystalline form?
A
CsCl
B
AgBr
C
ZnS
D
KBr
3
JEE Main 2020 (Online) 8th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The major product [B] in the following sequence of reactions is :-

JEE Main 2020 (Online) 8th January Evening Slot Chemistry - Hydrocarbons Question 77 English
A
JEE Main 2020 (Online) 8th January Evening Slot Chemistry - Hydrocarbons Question 77 English Option 1
B
JEE Main 2020 (Online) 8th January Evening Slot Chemistry - Hydrocarbons Question 77 English Option 2
C
JEE Main 2020 (Online) 8th January Evening Slot Chemistry - Hydrocarbons Question 77 English Option 3
D
JEE Main 2020 (Online) 8th January Evening Slot Chemistry - Hydrocarbons Question 77 English Option 4
4
JEE Main 2020 (Online) 8th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
A metal (A) on heating in nitrogen gas gives compound B. B on treatment with H2O gives a colourless gas which when passed through CuSO4 solution gives a dark blue-violet coloured solution. A and B respectively, are :
A
Na and NaNO3
B
Na and Na3N
C
Mg and Mg3N2
D
Mg and Mg(NO3)2
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