The reaction of carbide with water gives

The reaction of carbide with water gives 

A. ethyne

B. ethane

C. ethene

D. ethanal

We need to carefully analyze the question: “The reaction of carbide with water gives …”

Here’s the step-by-step reasoning:

1. Identify the carbide type:

   • Calcium carbide (CaC₂) is the most common carbide that reacts with water.

2. Write the reaction:
   CaC2 + 2H2O 一> C2H2 + Ca(OH)2
   

   • Here, C₂H₂ is ethyne (acetylene).

3. Check other options:

   • Ethane (C₂H₆) → saturated hydrocarbon → does not form directly from carbide.

   • Ethene (C₂H₄) → unsaturated, but not the direct product.

   • Ethanal (CH₃CHO) → an aldehyde → also not formed.

✅ Answer: A. ethyne

PQN: 4