Metals And Non Metals

Question 1

_______ is a good conductor of heat and electricity

Answer 1

Copper

Question 2

Copper is used by electrical industries (gr)

Answer 2

Copper is used by electrical industries as it is a good conductor if electricity

Question 3

_______ iron is soft and ductile

Answer 3

Wrought

Question 4

What us wrought iron used for making

Answer 4

Wrought iron is used for making tin roofing, railings, grilles, electromagnets, nails • and bolts, furniture, gates, etc.

Question 5

What is pig iron used for making

Answer 5

Pig iron is used in the manufacture of drain pipes, manhole lids, sanitary fittings and immovable parts of machinery.

Question 6

What is steel used for

Answer 6

Steel is used for making rails, bridges, buildings, ships, machine parts, automobiles, utensils, etc. →

Question 7

______ is a silvery white metal

Answer 7

Aluminium

Question 8

(Ntf) A metal that is corridion resistance

Answer 8

Aluminium

Question 9

______ is a bluish white metal. Its is ______ in nature

Answer 9

Zinc, brittle

Question 10

Zinc is used to _______ iron sheets to prevent them from ______

Answer 10

Galvanize, corrosion

Question 11

Lead is a ________ or ______ metal

Answer 11

Silvery white, greyish

Question 12

Lead is a very good absorber if __________

Answer 12

Radioactive radiation

Question 13

Mahnesium is a ______ metal

Answer 13

Silvery white

Question 14

What us magnesium used for

Answer 14

• It is used in the preparation of alloys used for making of aircraft, machinery and household appliances.

Question 15

Calcium is a ________ metal

Answer 15

Silvery white

Question 16

What us calcium used for

Answer 16

2. Calcium carbonate is used in the manufacture of glass, cement, washing soda, etc.

Question 17

Mercury is a ____ and ______ metal

Answer 17

Heavy silvery

Question 18

Mecury is used as an ________ in dental
Fillings

Answer 18

Amalagam

Question 19

Platinum is a ______ and ______ metal

Answer 19

Heavy precious s

Question 20

Platinum is used as a ____ in a number of chemical processes

Answer 20

Catalyst

Question 21

Tungsten is a ____ metal

Answer 21

Strong

Question 22

Oxygen supports _____

Answer 22

Combustion

Question 23

Oxygen is used in the manufacture of important compounds such as

Answer 23

Nitric acid and sulphuric acid

Question 24

Nitrogen is used in the food industries to prevent spoilage if foods

Answer 24

It is non reactive

Question 25

Sulphur is a _____ _______ and solid at _____

Answer 25

Solid soft room temperature

Question 26

_________ is called the king if chemicals

Answer 26

Sulphuric acid

Question 27

Phosphorus is not found free in nature

Answer 27

Because it is a reactive element