Which statement is true?

A ) About three million compounds are known to the scientist ✅

B ) About four million compounds are known to the scientist

C ) About two million compounds are known to the scientist

D ) About five million compounds are known to the scientist

Related Questions
  1. Sodium hydroxide solution in water will:
  2. In dilute HCI blue litmus turns:
  3. Sodium carbonate is an important salt used for many purposes in industries which acid is reacted with sodium hydroxide to get it ?
  4. Lactic acid is found in:
  5. Tartaric acid obtain from:
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