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A: a-particles with a large angle scatte...

A: a-particles with a large angle scattered leads to the discovery of the nucleus of the atom. R: The central part of the atom is almost concentrated by positive electric charges

A

Both assertion and reason are true and the reason is correct explanation of the assertion.

B

Both assertion and reason are true but reason is not correct explanation of the assertion.

C

Assertion is true but the reason is false.

D

Both assertion and reason are false

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The correct Answer is:
A
Both assertion and reason are true and the reason is correct explanation of the assertion.
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