Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074



Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074
Textbook Problem

A large pickle is attached to two electrodes, which are than attached to a 110-V power supply. As the voltage is increased across the pickle, it begins to glow with a yellow color. Knowing that pickles are made by soaking the vegetable in a concentrated salt solution, describe why the pickle might emit light when electrical energy is added.


Interpretation Introduction

Interpretation: The yellow glow in the vegetable while applying electric current has to be explained briefly.

Concept introduction:

Electromagnetic radiations are a type of energy surrounding us. They are of different types like radio waves, IR, UV, X-ray etc.

While excitation of sodium salts, it produces intense yellow colour. The wavelength of this yellow colour is around 589nm.


The vegetable is soaked in concentrated NaCl solution. It contains many sodium atoms

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