Question

1. The acid present in curd/sour milk is
a.acetic acid
b. formic acid
c.lactic acid
d. hydrochloric acid
2. The substance which turns blue litmus red is
a.basic
b. acidic
c.neutral
d. alkaline
3. A base
a.has a bitter taste
b. turns blue litmus to red
c. turns purple-cabbage juice red d. d.has no effect on turmeric
4. Baking soda turns
a.turmeric to red
b. purple-cabbage juice to green
c.red litmus to blue
d. all of these
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Answer 1

Answer:

q1 . lactic acid

q2. acidic

q3. Bitter in taste

q4 . all of these