Which one of the following would you need to identify the gas that evolve when you heat NaOH solution with zinc metal? [CCE 2014]
A. Red litmus solution
B. Blue litmus solution
C. A burning splinter / matchstick
D. Lime water
Answer:C
Which one of the following would you need to identify the gas that evolve when you heat NaOH solution with zinc metal? [CCE 2014]
A. Red litmus solution B. Blue litmus solution C. A burning splinter / matchstick D. Lime water