Metals and Non-...

One day, Geeta went to a jeweller's shop to give her old gold jewellery for polish. When she brought the jewellery back, she found that there was a slight loss in its weight. The main reason for weight loss of gold jewellery is when a goldsmith dips the jewellery in

Riya's class teacher explained the physical properties of non-metals. According to her teacher, the non-metal that is in solid state and has lustre is

Match Column - A (non-metal) with Column - B (with their uses).
 

Ram's class teacher, while explaining the acidic and basic nature of metals and non-metals, tells that metallic oxides are basic in nature while non-metal oxides are acidic in nature. According to her, the aqueous solution of oxide that converts blue litmus into red is

According to Sweta's class teacher, metals are good conductors of electricity and heat. She tells Sweta about a liquid metal that is used in thermometers to test body temperature. The name of that liquid metal is

A substance 'X', when burnt in air, leaves a white residue. The aqueous solution of this white residue turns red litmus blue. The substance 'X' and its chemical nature is