1
JEE Main 2019 (Online) 12th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The mole fraction of a solvent in aqueous solution of a solute is 0.8. The molality (in mol kg–1 ) of the aqueous solution is :
A
13.88 × 10–1
B
13.88 × 10–3
C
13.88
D
13.88 × 10–2
2
JEE Main 2019 (Online) 12th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
Glucose and Galactose are having identical configuration in all the positions except position
A
C–5
B
C–3
C
C–2
D
C–4
3
JEE Main 2019 (Online) 12th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
The correct sequence of thermal stability of the following carbonates is :
A
BaCO3 < SrCO3 < CaCO3 < MgCO3
B
MgCO3 < CaCO3 < SrCO3 < BaCO3
C
BaCO3 < CaCO3 < SrCO3 < MgCO3
D
MgCO3 < SrCO3 < CaCO3 < BaCO3
4
JEE Main 2019 (Online) 12th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
What is the molar solubility of Al(OH)3 in 0.2 M NaOH solution ? Given that, solubility product of Al(OH)3 = 2.4 × 10–24 :
A
3 × 10–22
B
3 × 10–19
C
12 × 10–21
D
12 × 10–22
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