Hard equ's

Question 1

.
Which species is not produced by a redox reaction between solid sodium iodide
and concentrated sulfuric acid?
A Na2SO4
B H2S
C S
D SO

Answer 1

he correct answer is option (C).

When solid sodium iodide (NaI) reacts with concentrated sulfuric acid (H2SO4), a redox reaction takes place.

In this reaction, sodium iodide is oxidized, and sulfuric acid is reduced. The products of this reaction are hydrogen iodide gas (HI) and sulfur dioxide gas (SO2).

The balanced chemical equation for the reaction is as follows:

[2NaI + 2H2SO4 → 2HI + Na2SO4 + SO2]

As we can see from the equation, the substances produced in the reaction are hydrogen iodide (HI) and sulfur dioxide (SO2).

Therefore, option C - SO2 is not produced in this redox reaction, while options A (H2S), B (HI), and D (I2) are produced.