Step 1: She burned a substance X over the candle flame and white dazzling light was observed. Also white powdery ash was left behind. |
Step 2: She mixed the white ash formed with small amount of water. Then she dipped red and blue litmus papers into the solution one by one. |
I. The substance burned in step 1 was magnesium. |
II. The white ash formed in step 1 was magnesium oxide. |
III. The solution formed in step 2 was acidic in nature |
IV. The solution formed in step 2 turned blue litmus red. |
A) I and II only
B) III and IV only
C) I, II and III only
D) II, III and IV only
Correct Answer: A
You need to login to perform this action.
You will be redirected in
3 sec