Chemistry
(a) Experiment and …………… are the two important basics of chemistry.
(b) A porcelain dish is used ……………
(c) …………… is used to hold the test tube while it is hot or being heated.
(d) …………… is used for grinding and crushing solid substances into a powder.
(e) Glass apparatus is made of …………… or …………… glass.
Answer
(a) Experiment and observation are the two important basics of chemistry.
(b) A porcelain dish is used for evaporating solutions.
(c) Test tube holder is used to hold the test tube while it is hot or being heated.
(d) Mortar and pestle is used for grinding and crushing solid substances into a powder.
(e) Glass apparatus is made of pyrex or borosil glass.
Related Questions
To pass a gas from one vessel to another, you will use a:
- gas jar
- delivery tube
- glass rod
- test tube
To prevent the escape of a gas from a gas jar, you will cover its mouth with a:
- watch glass
- crucible
- beaker
- round bottom flask
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