Chemistry-10th Acids, Bases and Salts CBSE Board 2023 Medium
After burning a magnesium ribbon a student collected the ash so formed in a watch glass. He then dissolved th…
After burning a magnesium ribbon a student collected the ash so formed in a watch glass. He then dissolved this ash in water and tested the nature (acidic or basic) of the solution using pH paper and litmus solution. His correct observation would be :
- (a)Its pH is 10 and it turns blue litmus to red.
- (b)Its pH is 4 and it turns blue litmus to red.
- (c)Its pH is 4 and it turns red litmus to blue.
- (d)Its pH is 10 and it turns red litmus to blue.
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