Chemistry Quiz Questions-(Chemical and elements)

Chemistry Quiz Questions-(Chemical and elements)

Category - Basic Chemistry I
Question	Correct Answer
An atom is generally regarded as being made up of	Electrons Neutrons Protons
An element is made up of	Atoms
What forms the nucleus of the atom ?	Protons Neutrons
What particles move rapidly around the nucleus ?	Electrons
A pure substance that cannot be split up by a chemical reaction is a	Element
What particle is by far the lightest ?	Electron
Mass Number - Atomic Number =	Number of Neutrons
Mixtures of elements combine to form a	Compound
The mass number is the number of what in an atom ?	Protons Neutrons
The Atomic Number is the total number of what in an atom ?	Protons

GENERAL QUESTIONS  :


•H2O is liquid, but H2S is what?

Gas

• Which sulfur has needle shaped crystals?
Prismatic
 
• Gold paint made from:
Copper
 
• Name a reducing agent:
Hydrogen sulfide

• Name the dehydrating agent:
Sulfuric acid
 
• Name a bleaching agent:
Sulfur di oxide 


• A rain coat is made up of what?
Polychloroethene 

• Which element on adding to natural rubber makes it less sticky in hot weather and less hard in cold weather? 
Sulfur

• Which chemical causes Minimata disease?
Mercury 


• The absence of cobalt in minute quantities in human body causes what?
Pernicious anemia


• Which element can easily form chains?
Carbon


• Oxygen can accept electron from all elements except what?
Fluorine


• Which element is used as an antichlor?
SO2


• Which is the most reactive element in sixth group?
Oxygen 


• Which is the smallest atom in sixth group element? 
Oxygen


• All the oxide which contains two atoms of oxygen in a molecule is called what?
Di oxides


• Write example for slow chemical reaction:
Rusting of iron
Change of mill into curd


• Which catalyst used in the manufacture of ammonia from nitrogen and hydrogen?
Iron


• Which substance used as catalyst in the preparation of oxygen from potassium chlorate?
Manganese dioxide


• Which compound formed when hydrogen peroxide decomposes?
Water 


• Which useable substance formed as a result of collision?
Active complexes


• Which element can toxic to plants growing in soils that are high acidity?
Aluminum


• Glass is made out of what?
Sand 


• Which is considered to be an anomalous compound? 
Water


• How would you know that a chemical is pure or not?
By checking its melting point 


• Which drug is present in cola drinks?
Caffeine


• Which fuel produce maximum heat per gram burnt?
Hydrogen


• Which element in radioactive form is used for determining the age of artifacts, relics, bones etc. of the past?
Carbon


• Which product of living organisms was the first to be made under the laboratory conditions? 
Urea


• Which drug is present in tobacco?
Nicotine


• What is the most common natural source for sulfur?
Volcanic region 


• The first scientific definition of a chemical element was made in which book?
The Sceptical Chymist


• Which element is present in the least amount in a living body?
Manganese


• Which substance is produced when nitrogen react with hydrogen? 
Ammonia


• Which metal has the density is less than that of water?
Sodium


• Which catalyst used in the manufacture of sulfuric acid?
Vanadium pent oxide 


• Which metal react with water and forms an alkaline compound?
Sodium


• Which metal floats on water?
Sodium (potassium) 


• Which theory is used for explaining the changes in reaction rate?
Collision theory