CHM192




Category: CHM192

0

ATTENTION:

Kindly note that you will be presented with 50 questions randomized from the NOUN question bank. Make sure to take the quiz multiple times so you can get familiar with the questions and answers, as new questions are randomized in each attempt.

Good luck!


CHM192

1 / 50

1) The viscosity of most liquids varies _________ with temperature.

2 / 50

2) Modern digital weighing scales have many types, styles and _________ ranges.

3 / 50

3) The most important applications of magnetic  stirring is stirring in a ________ system.

4 / 50

4) When liquid is cooled less than its freezing point, it _________ .

5 / 50

5) Which of the following reactions (1) substitution (2) addition (3) reaction with sulphuric acid, is/are not common to alkanes?

6 / 50

6) The size of steam bath can be controlled by adding or removing ___________

7 / 50

7) Alkanes are saturated hydrocarbons, cycloalkanes are ____________ hydrocarbons.

8 / 50

8) Modern digital weighing scales __________ results very precisely.

9 / 50

9) Calcium chloride is mostly used as _____.

10 / 50

10) All edges of glass tubing must be fine-polished to round off the ________ edges.

11 / 50

11) Isomers have different physical properties and _________ chemical properties.

12 / 50

12) The most common methods of lighting the burner are using a match on a ___________ lighter.

13 / 50

13) In the reaction of KMnO4 and ethene, the KMnO4 is ________

14 / 50

14) Some solids begin to ___________ a few degrees below their melting point.

15 / 50

15) When alcohol is dehydrated, product x is formed. To prevent x from reforming back to alcohol, x is preferably removed by _________

16 / 50

16) When heating beakers with a burner, _________ should be placed between the vessel and the flame.

17 / 50

17) Most laboratory __________ are equipped with multiple gas nozzles connected to a central gas source.

18 / 50

18) The shrinkage of a solid being heated is called _____.

19 / 50

19) Supercooling occurs when a liquid is cooled __________ its freezing point.

20 / 50

20) Bromine water is reacted with I. Butane II. Butene III. Butyne. In which of the/these reactions will bromine water be decolourised?

21 / 50

21) Proper selection of a suitable type of stirrer requires that you certain ________ variables.

22 / 50

22) __________ is the process of boiling reactants while cooling the vapour and returning it to the flask as liquid.

23 / 50

23) For micro-scale work, a Pasteur dropping ___________ can be used instead of glass funnel.

24 / 50

24) One of the reasons for the vast array of organic compounds is the phenomenon of ____________.

25 / 50

25) Elimination of a molecule of water in alcohol results in Pi-bond formation of _________

26 / 50

26) For temperature above 100oC, __________ baths are generally used

27 / 50

27) Never place the litmus paper _________ into the solution.

28 / 50

28) The simplest formular for representing hydrocarbon is called __________ formular.

29 / 50

29) Below the _________ point, solvent will be seen running back into the flask.

30 / 50

30) A stirrer hot plate keeps the _________ at a constant temperature while stirring.

31 / 50

31) A medicine dropper is calibrated by counting the number of drops it produces to make up a ________

32 / 50

32) To write the ______________ formula of hydrocarbon, the hydrogen atoms are grouped with their carbon atom.

33 / 50

33) Powerful pumps provide good heat __________ and optimum temperature accuracy.

34 / 50

34) BrCH2CH2Br represent _________.

35 / 50

35) Bunsen burner is used for heating, sterilization and ________

36 / 50

36) Hydrocarbons consisting of carbon linked in a single chain are chain aliphatic, those linked by branched chain are called ________

37 / 50

37) The two types of magnetic stirrers are mechanical and _________

38 / 50

38) ________ are used to heat small quantities of substances to very high temperatures.

39 / 50

39) _________ is the container used to keep sample dry.

40 / 50

40) Sodium metal _________ on contact with water.

41 / 50

41) __________ flasks are used to prepare solution of a specific concentration.

42 / 50

42) A Bunsen burner was named after _________ Bunsen.

43 / 50

43) Elimination reaction of an alcohol is called _________

44 / 50

44) Heating mantles must be used with variable _______

45 / 50

45) Which of these; ethanol and methanol, has higher boiling point and why?

46 / 50

46) Precision and _________ were still missing with the use of spring balance.

47 / 50

47) Filtration involves the separation of __________ solid materials from a liquid.

48 / 50

48) The _________ of a solid is the temperature at which the liquid and solid phases are in equilibrium.

49 / 50

49) NaOH is ________ and can eat away living tissues.

50 / 50

50) The heating mantle is safe because it does not produce _________

Rate this quiz




Hello NOUNITES! Join other NOUNITES on Whatsapp and Telegram below, EXCLUSIVE UPDATES awaits you from various study centres and happenings in NOUN. Stay updated
 
Don't miss out, JOIN OVER 22,000 other students already following our platforms

FOLLOW WHATSAPP CHANNEL  FOLLOW TELEGRAM CHANNEL 
    
JOIN WHATSAPP GROUP   JOIN TELEGRAM GROUP
close-link