Neodymium is the element used to reduce glare in sunglasses (even used in LCD screens).
In the chemical process of Vulcanization, with which element is the natural rubber heated to make it usable by improving its properties ?
Which is the only non-metal element that exists in liquid form at room temprature (25 degree Celsius) ? (A) Carbon (B) Bromine (C) Sulphur (D) Selenium