1
TS EAMCET 2020 (Online) 14th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

Given the ratio of amounts of nitrogen and oxygen in a particular gaseous mixture is $4: 1$. Calculate the ratio of number of their molecules?

A

$11: 4$

B

$32: 7$

C

$4: 15$

D

$13: 8$

2
TS EAMCET 2020 (Online) 14th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

Sulphuric acid reacts with sodium hydroxide as follows:

$$ \mathrm{H}_2 \mathrm{SO}_4+2 \mathrm{NaOH} \longrightarrow \mathrm{Na}_2 \mathrm{SO}_4+2 \mathrm{H}_2 \mathrm{O} $$

What will be the amount of sodium sulphate formed, when l L of 0.2 M sulphuric acid is allowed to react with l L of 0.2 M sodium hydroxide solution?

A

4.5 g

B

142 g

C

14.2 g

D

1.42 g

3
TS EAMCET 2020 (Online) 14th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

For the reactions,

$$ \begin{aligned} 2 \mathrm{Cl}(g) & \longrightarrow \mathrm{Cl}_2(g) \\ \mathrm{CO}_2(g) & \longrightarrow \mathrm{CO}(g)+\frac{1}{2} \mathrm{O}_2(g) \end{aligned} $$

What are the signs of $\Delta S$, respectively?

A

Positive and positive

B

Positive and negative

C

Negative and positive

D

Negative and negative

4
TS EAMCET 2020 (Online) 14th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following statement is correct?

A

$\Delta G$ is equal to $\Delta G^{\circ}$ when the system is at the standard state.

B

$\Delta G^{\circ}$ is zero when the system is at equilibrium.

C

$\Delta G$ measures activation energy of a reaction.

D

When $\Delta G$ is positive, the reaction should proceed forward to form more product.

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