JSFiddle - React, Tailwind, and code Playground

HTML

<select class="chzn-select" multiple>
    <option selected value="1">one</option>
    <option value="2">two</option>
</select>

<button id="reset">Reset Select</button>

JavaScript

$(function(){
    $('#reset').on('click', function(e){
        $('.chzn-select option').prop('selected', false);
    });
});