WorksheetsIntroduction to chemistry and Laboratory apparatus
Total questions: 19
Worksheet time: 7mins
The systematic study of world around us through observations and experimentations is called as
Biology
science
chemistry
physics
Chemistry is
The study of chemical compositions and properties of substances
The study of life
The study of space
The study of animals
Sodium benzoate is a
Fertilizer
fungicide
Preservative
Explosive
The substances which on burning produces heat energy are called as (a)
Alchemists wanted to create a material which could change other metals into gold
Philosophers stone
Copper stone
Diamond
Iron rod
The older form of chemistry that was practiced by the people is called as
Chemmy
Alchemy
Botany
Chemistry
Who among the following invented Dynamite?
John Dalton
Alfred Nobel
Henry Cavendish
Curie
She was the one of the scientist to study radioactivity. she discovered radium and polonium. who is she?
Marie Curie
Shakuntala Devi
Ramanujan
John Dalton
Who is father of Indian Chemistry?
Venkatraman Ramakrishnan
Prafulla Chandra Ray
Jagadesh Chandrabose
None
The scientist who discovered Oxygen and proved it is necessary for life.
Antoine Lavoesier
Joseph Priestley
John Dalton
Dmitri mandeleev
---------- are added to the soil to increase the amount of nutrients in the soil.
Pesticides
fungicides
Fertilizers
Herbicides
Urea is an example of
Pesticide
fungicide
Herbicide
Fertilizer
Chemicals that are used to kill pests are called as
Fungicides
Pesticides
Herbicides
Fertilizers
The unwanted plants grown in between the main crop are called as
insects
weeds
useful plants
trees
Polyester is a
natural fibre
synthetic fibre
dye
medicine
An example of a natural fibre
nylon
polyester
cotton
synthetic rubber
-----------are added to packed food
Preservatives
Paracetomol
crocin
anti oxidants
Inert gases were discovered by
William Ramsay
William Boyle
Robert Hooke
John Dalton
Talcum powder is used as a
Preservative
fuel
insecticide
Cosmetic
