Chemistry
From what materials are the following made up of ?
(a) Test tube rack
(b) Test tube holder
(c) Measuring cylinder
(d) Wire gauze
(e) Mortar and pestle
Related Questions
Write true or false against the following statements and correct the false ones.
(a) A glass funnel is used to pour off liquids. ……………
(b) A test tube is used to test liquid chemicals. ……………
(c) A mortar and pestle is used for evaporation. ……………
(d) A glass rod is used to stir solutions. ……………
(e) A round-bottom flask is used to store chemicals. ……………
Match the items in column A with their respective functions in column B.
Column A Column B (a) Iron stand (i) To boil chemicals (b) Test tube (ii) To keep solutions (c) Funnel (iii) To stir solutions (d) Beaker (iv) To support apparatus (e) Glass rod (v) To transfer liquids Mention one use of each of the following equipments:
(a) Spirit lamp
(b) Test tube
(c) Conical flask
(d) Evaporating dish
(e) Wire gauze
(f) Beaker
(g) Mortar and pestle
(h) Measuring cylinder
(i) Glass tube
(j) Gas jar
(k) Reagent bottle
Answer the following questions in brief:
(a) Why is chemistry known as an experimental science?
(b) Why are most of the apparatus made of glass?