State PCS PYQPrelims 2021

UPPCS · প্রশ্ন 86

Which of the following is NOT correctly matched?

  1. Acid present in vinegar - Acetic acid
  2. Compound present in bones - Calcium phosphate
  3. Souring of milk - Nitric acid
  4. Acid present in gastric juice - Hydrochloric acid
উত্তর দেখান ও ব্যাখ্যা

উত্তর: (C) Souring of milk - Nitric acid

ব্যাখ্যা

Milk sours due to lactic acid produced by bacteria.