1
JEE Main 2019 (Online) 12th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The element that shows greater ability to form p$$\pi $$-p$$\pi $$ multiple bonds, is :
A
Si
B
Ge
C
C
D
Sn
2
JEE Main 2019 (Online) 12th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The correct structure of histidine in a strongly acidic solution (pH = 2) is -
A
JEE Main 2019 (Online) 12th January Evening Slot Chemistry - Biomolecules Question 143 English Option 1
B
JEE Main 2019 (Online) 12th January Evening Slot Chemistry - Biomolecules Question 143 English Option 2
C
JEE Main 2019 (Online) 12th January Evening Slot Chemistry - Biomolecules Question 143 English Option 3
D
JEE Main 2019 (Online) 12th January Evening Slot Chemistry - Biomolecules Question 143 English Option 4
3
JEE Main 2019 (Online) 12th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
If Ksp of Ag2CO3 is 8 $$ \times $$ 10–12, the molar solubility of Ag2CO3 in 0.1 M AgNO3 is -
A
8 $$ \times $$ 10–12 M
B
8 $$ \times $$ 10–10 M
C
8 $$ \times $$ 10–13 M
D
8 $$ \times $$ 10–11 M
4
JEE Main 2019 (Online) 12th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
8 g of NaOH is dissolved in 18g of H2O. Mole fraction of NaOH in solution and molality (in mol kg–1) of the solution respectively are -
A
0.2, 11.11
B
0.167, 22.20
C
0.167, 11.11
D
0.2, 22.20
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