Common Laboratory Apparatus and Equipments : Selina Concise Class 6 Chemistry Inside Question Answer
Selina Concise Chemistry Class 6 Inside Based Question Paper with All Answer. Now of days for ICSE Class 6 Students, it is not enough to Learn only Exercise Questions Answers. As because most of the time Examiners will give Inside Question Answer from that respective Chapter. So Here in this page Our Experts provided All Selina Concise Class 6 Chemistry Inside Questions & Answers – Common Laboratory Apparatus and Equipments Extra Questions.
(1.) WHICH ARE THE TWO BASIC IMPORTANT ELEMENTS OF CHEMISTRY?
ANS:- The two elements are Experiment and observation.
(2.) WHICH IS USED FOR GRINDING AND CRUSHING SOLID SUBSTANCES INTO A POWDER?
ANS:- Mortar and Pestle are used for grinding and crushing solid substances into a powder.
(3.) DEFINE- a) BALANCE ROOM. b) REAGENT SHELF
ANS:- BALANCE ROOM:- Every laboratory has a separate room where a number of physical and chemical balances are kept for weighing chemicals. This room is kept dust free and smoke free for accurate measurements. A good chemical laboratory must have the apparatus and equipments.
REAGENT SHELF:- all reagents and chemicals should be properly kept on the shelf with lables on every bottle so that there should not be any confusion while using the reagents.
(4.) WHY MOST IN THE LABORATORY APPRATUS MADE OF GLASS?
ANS:- Most of the laboratory apparatus are made of glass because-
(a) Glass is a transparent material and we can see through easily.
(b) Glass is easy to clean.
(c) Glass does not react with most of the chemicals used in experiments.
(d) Glass can withstand high temperature.
(5.) FROM WHAT MATERIALS ARE THE FOLLOWING MADE UP OF?
A) FUNNEL B) MORTAL AND PESTLE. C) SPIRIT LAMP. D) BUNSEN BURNER E) REAGENT BOTTLE F) WATER TROUGH
ANS:- A) FUNNEL= Funnel is made up glass or plastic.
B) MORTAR AND PESTLE:- This are made of Porcelain.
C) SPIRIT LAMP :- A type of burner made of glass, brass or steel containing a wick.
D) BUNSEN BURNER :- A burner that made of iron and uses gas as fuel.
E) REAGENT BOTTLE :- This is made white or coloured glass.
F) WATER TROUGH :- It is made up of metal or glass. It is big and bowl shaped.
(6.) MENTION ONE USE OF FOLLOWING EQUIPMENTS:-
A) EVAPORATING DISH B) MEASURING CYLINDER C) BEAKER D) GLASS ROD E) THISTLE FUNNEL F) WATER BATH.
ANS:- A) EVAPORATING DISH- It is used for evaporating solutions.
B) MEASURING CYLINDER:- It is used to measure volume of liquid substances.
C) BEAKER:- It is used for preparation and keeping of solutions.
D) GLASS ROD:- It is used to stir chemical solutions.
E) THISTLE FUNNEL:- it is used for transfer liquids in a control manner.
F) WATER BATH:- it is used when a substance cannot be heated directly on the flame.