try this:
$page_id = get_queried_object_id();
if ($page_id == 112) {
get_template_part('partials/slider3');
} elseif ($page_id == 110) {
get_template_part('partials/slider2');
}
By the way, your forgot a )
here: if (is_page(112){
must be if (is_page(112)) {