1
JEE Main 2019 (Online) 8th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
Assertion : Ozone is destroyed by CFCs in the upper stratosphere.

Reason : Ozone holes increase the amount of UV radiation the earth.
A
Assertion and reason are both correct, and the reason is the correct explanation for the assertion.
B
Assertion and reason are incorrect.
C
Assertion and reason are correct but, the reason is not the explanation for the assertion
D
Assertion is false, but the reason is correct.
2
JEE Main 2019 (Online) 8th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
An organic compound 'X' showing the following solubility profile is : JEE Main 2019 (Online) 8th April Morning Slot Chemistry - Practical Organic Chemistry Question 82 English
A
o-Toluidine
B
Benzamide
C
Oleic acid
D
m-Cresol
3
JEE Main 2019 (Online) 8th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
The correct order of hydration enthapies of alkali metal ions is :
A
Li+ > Na+ > Cs+ > Rb+
B
Na+ > Li+ > K+ > Cs+ > Rb+
C
Na+ > Li+ > K+ > Rb+ > Cs+
D
Li+ > Na+ > K+ > Rb+ > Cs+
4
JEE Main 2019 (Online) 8th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
Maltose on treatment with dilute HCI gives :
A
D-Galactose
B
D-Glucose and D-Fructose
C
D-Glucose
D
D-Fructose
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