railway RRB ALP (CBT 1 + CBT 2 + CBAT) Mock Test Series 2025 (New) General Science Chemistry Chemical Reaction
Out of two bottles of pickles, one old and one freshly made, the old one can be detected by its smell and taste caused by _______
1
Oxidation of oil in the pickle making it rancid
2
Investors of bacteria causing putrefaction
3
Reduction in volume of oil in the pickle
4
Fermentation by yeast