Question

*Which reaction/reactions occurs in presence of sunlight?* 1️⃣ 6CO₂(aq) + 12H₂O(l) → C₆H12O6₆(aq) + 6O₂(g) + 6H₂O(l) 2️⃣ CaCO₃(s) → CaO(s) + CO₂(g) 3️⃣ 2AgCl(s) → 2Ag(s) + Cl₂(g) 4️⃣ Both ‘a’ & ‘c’​

Answer 1

Answer:

1

Explanation:

because the reaction number 1 is the reaction of photosynthesis which occur in the presence of light.

Answer 2

The reactions that occur in the presence of sunlight are $\[6{H_2}O(aq.) + 12{H_2}O(l) \to {C_6}{H_{12}}{O_6}(aq.) + 6{O_2}(g) + 6{H_2}O(l)\]$ and $\[2AgCl(s) \to 2Ag(s) + C{l_2}(g)\]$.

Explanation:

• The reaction $\[6{H_2}O(aq.) + 12{H_2}O(l) \to {C_6}{H_{12}}{O_6}(aq.) + 6{O_2}(g) + 6{H_2}O(l)\]$ is the reaction that occurs during photosynthesis.
• Photosynthesis takes place in the presence of sunlight. So, this reaction takes place in the presence of sunlight.
• When silver chloride (white) is kept in sunlight, it changes to silver (grey) and chlorine gas is released.
• Thus, the reaction $\[2AgCl(s) \to 2Ag(s) + C{l_2}(g)\]$ also takes place in the presence of sunlight.
• Other reactions do not take place in the presence of sunlight.