Name the following:
A non-metallic element other than carbon, which forms a neutral & an acidic oxide.

Name the following metals : A metal present in cryolite other than sodium.

Name a non-metallic element which forms an acidic and a neutral oxide.

Write the name the liquid non-metal element.

Name the following A metal oxide that can be reduced by hydrogen.

Name the following : A metal other than manganese, present in duralumin but not in magnalium.

Using the information above, complete the following: Non-metallic elements tend to form .......... oxides while metals tend to form ...... oxides.

The element of second period which forms most acidic oxide is

Name the following: Non-metal which is a good conductor of electricity.

Which of the following is a neutral amino acid ?

Non-metals are usually poor conductors of heat and electricity. They are non-lustrous, non-sonorous, non malleable and are coloured. (a) Name a lustrous non-metal. (b) Name a non-metal which exists as a liquid at room temperature. (c) The allotrpic form of a non-metal is a good conductor of electricity . (d) Name a non-metal which is known to form the largest number of compounds. (e) Name a non-metal other than carbon which shows allotropy. (f) Name a non-metal which is required for combustion.