1
COMEDK 2026 Afternoon Shift
MCQ (Single Correct Answer)
+1
-0

500 mL of an aqueous solution of glucose $\mathrm{C}_6 \mathrm{H}_{12} \mathrm{O}_6$ (Molar mass $180 \mathrm{gmol}^{-1}$ ) contains $6.02 \times 10^{22}$ molecules.

The concentration of the solution will be:

A

2.0 M

B

1.0 M

C

0.1 M

D

0.2 M

2
COMEDK 2026 Morning Shift
MCQ (Single Correct Answer)
+1
-0

The mass of precipitate formed when 50 mL of $16.9 \%$ aqueous solution of $\mathrm{AgNO}_3$ is mixed with 50 mL of $5.8 \% \mathrm{NaCl}$ solution is-----------$[\mathrm{Ag}=107.8, \mathrm{~N}=14, \mathrm{O}=16, \mathrm{Na}=23, \mathrm{Cl}=35.5]$

A

14

B

5

C

7

D

6

3
COMEDK 2025 Evening Shift
MCQ (Single Correct Answer)
+1
-0
The mole fraction of an unknown solute in 1560 g of Benzene is 0.5 . What is the molality of the solution? (M. M of Benzene:78 amu)
A
12.8
B
10.3
C
3.25
D
16.9
4
COMEDK 2025 Morning Shift
MCQ (Single Correct Answer)
+1
-0
If X is a haloalkane with a single Chlorine atom per molecule and the percentage of Cl is 55 , what would be the number of Cl atoms present in 0.1 g of the haloalkane? Atomic mass of $\mathrm{Cl}=35.5 \mathrm{~g} / \mathrm{mol}$
A
$6.022 \times 10^{22}$
B
$1.2044 \times 10^{21}$
C
$9.328 \times 10^{20}$
D
$9.329 \times 10^{23}$

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