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N-Type Semiconductor

Which of the ...

Question

Which of the following statements regarding alkali metals is not correct?

A

They are soft and have relatively low melting point compared to other metals

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B

Fr is a radioactive metal

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C

Alkali metals are strong reducing agents

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D

Na is used in photoelectric cells

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Solution

The correct option is D Na is used in photoelectric cells
K or Cs are generally used in photoelectric cells as Na has high work function

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