JSFiddle - React, Tailwind, and code Playground

HTML

<div class="radio">
    <label>
        <input type="radio" name="custom_field[account][1]" id="id-custom_field-account-1-1" value="1"> Pessoa Física
    </label>
</div>
<div class="radio">
    <label>
        <input type="radio" name="custom_field[account][1]" id="id-custom_field-account-1-2" value="2"> Pessoa Jurídica
    </label>
</div>
<input type="text" name="custom_field[account][4]" value="" placeholder="Razão Social" id="input-custom-field4" class="form-control" vk_1bc56="subscribed">
<input type="text" name="custom_field[account][5]" value="" placeholder="CNPJ" id="input-custom-field5" class="form-control" vk_1bc56="subscribed">
<input type="text" name="custom_field[account][6]" value="" placeholder="I.E" id="input-custom-field6" class="form-control" vk_1bc56="subscribed">
<input type="text" name="custom_field[account][3]" value="" placeholder="RG" id="input-custom-field3" class="form-control" vk_1bc56="subscribed">
<input type="text" name="custom_field[account][2]" value="" placeholder="CPF" id="input-custom-field2" class="form-control" vk_1bc56="subscribed">

CSS

input.form-control {
	display: none;
}

JavaScript

$(document).ready(function() {
    $('input:radio[name="custom_field[account][1]"]').on("change", function() {
        if (this.checked && this.value == '1') {
            $("#input-custom-field2, #input-custom-field3").show();
            $("#input-custom-field4, #input-custom-field5, #input-custom-field6").hide();
        } else {
            $("#input-custom-field4, #input-custom-field5, #input-custom-field6").show();
            $("#input-custom-field2, #input-custom-field3").hide();
        }
    });
});