1
COMEDK 2024 Evening Shift
MCQ (Single Correct Answer)
+1
-0

Identify the pair of molecules in which one of them is a molecule with an odd electron and the other has an expanded octet.

A
$$\mathrm{BeCl}_2$$ & HNO$$_3$$
B
$$\mathrm{NO}$$ & PF$$_5$$
C
$$\mathrm{BCl}_3$$ & NO$$_2$$
D
$$\mathrm{SCl}_2$$ & NH$$_3$$
2
COMEDK 2024 Evening Shift
MCQ (Single Correct Answer)
+1
-0

Arrange the following compounds in the increasing order of their reactivity when each of them is reacted with chloroethane / anhydrous AlCl$$_3$$.

COMEDK 2024 Evening Shift Chemistry - Haloalkanes and Haloarenes Question 1 English

A
D < A < B < C
B
C < D < B < A
C
D < B < A < C
D
C < B < A < D
3
COMEDK 2024 Evening Shift
MCQ (Single Correct Answer)
+1
-0

What mass of Silver chloride, in grams, gets precipitated when $$150 \mathrm{~ml}$$ of $$32 \%$$ solution of Silver nitrate is reacted with $$150 \mathrm{ml}$$ of $$11 \%$$ Sodium chloride solution? Atomic mass in $$\mathrm{g} / \mathrm{mol}: \mathrm{Ag}=108, \mathrm{Na}=23, \mathrm{Cl}=35.5, \mathrm{~N}=14, \mathrm{O}=16$$

A
40.47
B
32.45
C
48.0
D
16.52
4
COMEDK 2024 Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following 2 compounds exhibit both Geometrical and Structural isomerism?

$$\begin{aligned} & \mathrm{A}=\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_4 \mathrm{Cl}_2\right] \mathrm{NO}_2 \\ & \mathrm{~B}=\left[\mathrm{Co}\left(\mathrm{NH}_3\right) \mathrm{Br}\right] \mathrm{SO}_4 \\ & \mathrm{C}=\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_3\left(\mathrm{NO}_2\right)_3\right] \\ & \mathrm{D}=\left[\mathrm{Cr}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right] \mathrm{Cl}_3 \end{aligned}$$

A
A & C
B
C & B
C
B & D
D
A & B
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