Final answer:
The tax on whiskey led to the Whiskey Rebellion, and the federal government sent an army to break it up.
Step-by-step explanation:
The effect of Alexander Hamilton's tax on whiskey was that it led to the Whiskey Rebellion. The federal government, in response to farmers refusing to pay the tax, sent an army to break up the rebellion. This showed that the government was willing to use force to enforce tax laws.
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