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

$$\mathrm{K}_{\mathrm{H}}$$ for $$\mathrm{O}_2$$ at $$293 \mathrm{~K}$$ is $$34.86 \mathrm{~kbar}$$. What should be the partial pressure of $$\mathrm{O}_2$$ gas so that it has a solubility of $$0.08 \mathrm{~g} / \mathrm{L}$$ in water at $$293 \mathrm{~K}$$ ? (Density of solution $$=1 \mathrm{~g} / \mathrm{ml}$$)

A
156.8 $$\times$$ 10$$^{-5}$$ bar
B
15680 bar
C
156.8 bar
D
1.569 bar
2
COMEDK 2024 Morning Shift
MCQ (Single Correct Answer)
+1
-0

The permanganate ion in acid medium acts as an oxidant and gets converted to its lower oxidation state. What would be the spin only magnetic moment of such reduced manganese ion?

A
2.84 BM
B
4.90 BM
C
3.87 BM
D
5.92 BM
3
COMEDK 2024 Morning Shift
MCQ (Single Correct Answer)
+1
-0

$$\mathrm{A}_3 \mathrm{~B}_4$$ is a sparingly soluble salt with a solubility of $$\mathrm{s} g / \mathrm{L}$$. If the Molar mass of $$\mathrm{A}_3 \mathrm{~B}_4$$ is $$\mathrm{Mg} / \mathrm{mol}$$, what is the expression for its $$\mathrm{K}_{\text {sp }}$$ ?

A
$$6912(\mathrm{~s} / \mathrm{M})^7$$
B
$$8413(\mathrm{~s} \mathrm{M})^8$$
C
$$5184(\mathrm{~s} / \mathrm{M})^7$$
D
$$5185(\mathrm{~s} \mathrm{M})^6$$
4
COMEDK 2024 Morning Shift
MCQ (Single Correct Answer)
+1
-0

Given below are 4 graphs [A], [B], [C] and [D]

COMEDK 2024 Morning Shift Chemistry - Chemical Kinetics Question 6 English

Identify the 2 graphs that represent a Zero order reaction?

A
[A] and [D]
B
[A] and [B]
C
[B] and [C]
D
[C] and [D]
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