Science Quiz 138

This is a timed quiz. You will be given 120 seconds to answer all questions. Are you ready?

120

Quartz crystals normally used in quartz clocks etc. is chemically ?

Silicon dioxide

Germanium oxide

Sodium silicate

None of these

Correct! Wrong!

The variety of coal in which the deposit contains recognizable traces of the original plant material is?

Lignite

Peat

Anthracite

All of the above

Correct! Wrong!

The average salinity of sea water is?

3.5 %

2.5 %

2 %

All of these

Correct! Wrong!

Chlorophyll is a naturally occurring chelate compound in which central metal is?

Copper

Iron

Magnesium

None

Correct! Wrong!

For safety, the fuse wire used in the mains for household supply of electricity must be made of metal having?

Low melting point

High resistance

High melting point

None

Correct! Wrong!

The gases used in different types of welding would include?

Oxygen, acetylene and argon

Oxygen and acetylene

Oxygen and hydrogen

None

Correct! Wrong!

For galvanizing iron which of the following metals is used?

Lead

Zinc

Copper

None

Correct! Wrong!

The element of an electric stove made ?

Nichrome

Magnalium

Invar

None

Correct! Wrong!

Science Quiz 138

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Science Quiz 138

Quartz crystals normally used in quartz clocks etc. is chemically ?

The variety of coal in which the deposit contains recognizable traces of the original plant material is?

The average salinity of sea water is?

Chlorophyll is a naturally occurring chelate compound in which central metal is?

For safety, the fuse wire used in the mains for household supply of electricity must be made of metal having?

The gases used in different types of welding would include?

For galvanizing iron which of the following metals is used?

The element of an electric stove made ?

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Science Quiz 138

Quartz crystals normally used in quartz clocks etc. is chemically ?

The variety of coal in which the deposit contains recognizable traces of the original plant material is?

The average salinity of sea water is?

Chlorophyll is a naturally occurring chelate compound in which central metal is?

For safety, the fuse wire used in the mains for household supply of electricity must be made of metal having?

The gases used in different types of welding would include?

For galvanizing iron which of the following metals is used?

The element of an electric stove made ?

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