Helloozz

Silicon is a / an.......

• Alkali metal

• Halogens

• Inert gases

• Metalloid

All of the following exist in gaseous state exept

• Chlorine

• Fluorine

• Iodine

• C and a

Boiling point of liquified nitrogen is

• 0°c

• 1200°c

• 100°c

• -196°c

Cornea is preserved by using

• Nitrogen

• Liquid parrafine

• Sodium liquid

• Liquid nitrogen

Strongest metal lies in group

• 7a

• 7b

• 1a

• 1b

Strongest non-metal lies in group

• 7a

• 7b

• 1a

• 1b

............. Considered as halogen

• Lithium

• Helium

• Cesium

• Chlorine

Bromine is obtained when chlorine reacts with the.............. Solution

• Potassium bromide

• Sodium bromide

• Sodium iodine

• A, b

....... Element has higher chemical activity

• Sodium

• Lithium

• Fluorine

• Pottasium

• Cesium

The gas envolved on reacting alkali metal with water is.....

• Hydrogen

• Oxygen

• Bromine

• Chlorine