1.

Four students added a small amount of ethanoic acid to sodium hydrogencarbonate. The gas evolved was tested for its behaviour with burning splinter and lime water. They reported their observations as given below. Student Gas evolved Action on burning splinter Action on lime water A CO2 The flame of splinter extinguishes and gas does not burn Turned milky B SO2 The splinter burns brightly and the gas burns with a pop Turned green C NO2 The gas does not burn but the splinter burns with a hissing sound Turned black D O2 The gas burns with a yellow flame and the splinter extinguishes Turned purple The correct observations have been reported by student:(1) A(2) B(3) C(4) D

Answer» Four students added a small amount of ethanoic acid to sodium hydrogencarbonate. The gas evolved was tested for its behaviour with burning splinter and lime water. They reported their observations as given below.



































Student Gas evolved Action on burning splinter Action on lime water
A CO2 The flame of splinter extinguishes and gas does not burn Turned milky
B SO2 The splinter burns brightly and the gas burns with a pop Turned green
C NO2 The gas does not burn but the splinter burns with a hissing sound Turned black
D O2 The gas burns with a yellow flame and the splinter extinguishes Turned purple

The correct observations have been reported by student:

(1) A

(2) B

(3) C

(4) D


Discussion

No Comment Found

Related InterviewSolutions