1
MHT CET 2021 21th September Morning Shift
+1
-0

What is the rate of appearance of $$\mathrm{Z}$$ in following reaction? $$3 \mathrm{x} \rightarrow 2 \mathrm{y}+\mathrm{z}$$, if rate of disappearance of $$\mathrm{x}$$ is $$0.072 \mathrm{~mol} \mathrm{~s}^{-1}$$

A
$$0.072 \mathrm{~mol} \mathrm{~s}^{-1}$$
B
$$0.048 \mathrm{~mol} \mathrm{~s}^{-1}$$
C
$$0.024 \mathrm{~mol} \mathrm{~s}^{-1}$$
D
$$0.096 \mathrm{~mol} \mathrm{~s}^{-1}$$
2
MHT CET 2021 21th September Morning Shift
+1
-0

Slope of the graph between rate ( $$\mathrm{Y}$$-axis) and $$[\mathrm{A}](\mathrm{X}$$-axis) for the first order reaction is equal to

A
$$\mathrm{k}$$
B
$$\frac{2.303}{\mathrm{k}}$$
C
$$\frac{\mathrm{k}}{2.303}$$
D
$$-\mathrm{k}$$
3
MHT CET 2021 21th September Morning Shift
+1
-0

In a first order reaction, concentration of reactant is reduced to (1/8)th of concentration in 23.03 minutes. What is half-life period of reaction?

A
25 min
B
7.7 min
C
15 min
D
30 min
4
MHT CET 2021 20th September Evening Shift
+1
-0

For the reaction $$2 \mathrm{NO}+\mathrm{Cl}_2 \rightarrow 2 \mathrm{NOCl}$$

What is the relation between $$\frac{\mathrm{d}[\mathrm{NO}]}{\mathrm{dt}}$$ and $$\frac{\mathrm{d}[\mathrm{NOCl}]}{\mathrm{dt}}$$ ?

A
$$\frac{\mathrm{d}[\mathrm{NO}]}{\mathrm{dt}}=2 \frac{\mathrm{d}[\mathrm{NOCl}]}{\mathrm{dt}}$$
B
$$\frac{\mathrm{d}[\mathrm{NO}]}{\mathrm{dt}}=\frac{\mathrm{d}[\mathrm{NOCl}]}{\mathrm{dt}}$$
C
$$\frac{1}{4} \frac{\mathrm{d}[\mathrm{NO}]}{\mathrm{dt}}=\frac{\mathrm{d}[\mathrm{NOCl}]}{\mathrm{dt}}$$
D
$$4 \frac{\mathrm{d}[\mathrm{NO}]}{\mathrm{dt}}=\frac{\mathrm{d}[\mathrm{NOCl}]}{\mathrm{dt}}$$
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Physics
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Electromagnetism
Modern Physics
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