JSFiddle - React, Tailwind, and code Playground

HTML

<div class='radio'>1) 
<input type="radio" id="radio1" name="radio1" value="1" /><label for="radio1">Choice 1</label>
<input type="radio" id="radio2" name="radio1" value="2"  /><label for="radio2">Choice 2</label>
<input type="radio" id="radio3" name="radio1" value="3" /><label for="radio3">Choice 3</label>
</div>
<div class='radio'>2) 
<input type="radio" id="radio1" name="radio2" value="1" /><label for="radio1">Choice 1</label>
<input type="radio" id="radio2" name="radio2" value="2"  /><label for="radio2">Choice 2</label>
<input type="radio" id="radio3" name="radio2" value="3" /><label for="radio3">Choice 3</label>
</div>
<div class='radio'>3)
<input type="radio" id="radio1" name="radio3" value="1" /><label for="radio1">Choice 1</label>
<input type="radio" id="radio2" name="radio3" value="2"  /><label for="radio2">Choice 2</label>
<input type="radio" id="radio3" name="radio3" value="3" /><label for="radio3">Choice 3</label>
</div>

JavaScript

$('input').on('click', function() {
    check_all();   
});

function check_all() {
    var outputText = 'These are not checked: ';
    var myDivs = $('div.radio');
    for (var i=0; i<myDivs.length; i++) {
        var isChecked = false;
        var childInputs = myDivs[i].getElementsByTagName('input');
        for (var j=0; j<childInputs.length; j++) {
            if (childInputs[j].checked == true) {
                isChecked = true;
            }
        }
        if (isChecked == false) {
            outputText += (i+1) +', ';   
        }
    }
    alert(outputText.slice(0, -2));
}