Which set of drugs is incorrectly matched with its group ?

Options

A. 1 Opioids-Morphine, Heroin
B. 2 Coca alkaloids - Cocaine
C. 3 Cannabinoids - Barbiturates, LSD
D. 4 Stimulants -Caffeine, Cocaine

Answer

To determine which set of drugs is incorrectly matched with its group, we will analyze each option provided in the question.

### Step-by-Step Solution:

1. **Identify the Groups and Their Drugs:**
- **Opioids:** Includes morphine and heroin.
- **Coca Alkaloids:** Includes cocaine.
- **Cannabinoids:** Includes barbiturates and LSD.
- **Stimulants:** Includes caffeine and cocaine.

2. **Analyze Each Group:**
- **Opioids:** Morphine and heroin are indeed opioids, which are primarily used for pain relief. This match is correct.
- **Coca Alkaloids:** Cocaine is a well-known coca alkaloid, which is also a correct match.
- **Cannabinoids:** This group typically includes substances like THC (tetrahydrocannabinol) found in cannabis. Barbiturates are not cannabinoids; they are a separate class of drugs used as sedatives. Additionally, LSD (lysergic acid diethylamide) is a hallucinogen, not a cannabinoid. Therefore, this match is incorrect.
- **Stimulants:** Caffeine and cocaine are both stimulants that affect the central nervous system (CNS). This match is correct.

3. **Conclusion:**
- The incorrectly matched set of drugs is **cannabinoids**, which incorrectly includes **barbiturates and LSD**.

### Final Answer:
The set of drugs incorrectly matched with its group is **cannabinoids (barbiturates and LSD)**.

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