Chemistry class 8

Which of the following can be beaten thin sheets

• Zinc

• Phosphorus

• Sulphur

• Oxygen

• Carbon dioxide

Phosphorus is a very – nonmetal

• Less reactive

• More reactive

• Neutral reactive

• Highly reactive

• Reactive

Iron is......reactive than copper

• Less

• More

• Neutral

• None

• None of these

Metals react with acid to produce – gas

• Carbon

• Ozone

• Hydrogen

• Oxygen

• Florine

Name one metal and non metal which exist in liquid state at room temperature

• Mercury and bromine

• Mercury and ozone

• Bromine and chlorine

• Oxygen and copper

• Carbon dioxide and iron

Which metal is stored in kerosene?

• Iron

• Copper

• Bromine

• Chlorine

• Sodium

Name a non metal which is kept in water

• Nitrogen

• Phosphorus

• Copper

• Zinc

• Nitrogen gas

A given non metal forms sulphuric acid on reacting with nitric acid identify the non metal

• Sulphur

• Phosphorus

• Oxygen

• Iodine

• Carbon