Chemistry Mcqs

superadmin

Chemistry Mcqs for the preparation of NTS, PPSC, SPSC, BPSC, KPSC, FPSC, OTS and other academic entry test and jobs tests.

 

16. Which of the following Chemicals is used for fruit ripening
(a) Calcium carbide
(b) Sodium chloride
(c) Potassium chloride
(d) None of the above

 

17. In the entire universe, what is the most abundant element
(a) Hydrogen
(b) Iron
(c) Lead
(d) Oxygen

 

18. The single acid which dissolves gold is
(a) Nitric acid
(b) Selenic acid
(c) Hydrochloric acid
(d) Aqua regia

 

19. The chemical name of quartz is
(a) Calcium oxide
(b) Calcium phosphate
(c) Sodium phosphate
(d) Sodium silicate

 

20. Marsh gas mainly contains
(a) C2H2
(b) CO
(c) CH4
(d) H2S

 

21. What is the silk
(a) Fat
(b) Carbohydrate
(c) Hydrocarbon
(d) Protein

 

22. German Silver is an alloy of
(a) copper:55,nickel:25 and zinc: 20
(b) copper:25 nickel:45 and zinc: 30
(c) copper:25,nickel:55 and zinc: 20
(d) copper:15,nicke1:45 and zinc: 40

 

23. Which of the following is not a compound of calcium
(a) Gypsum
(b) Marble
(c) Chalk
(d) Silicon

 

24. Which one of the following is used as a moderator in a nuclear reactor
(a) Radium
(b) Ordinary water
(c) Thorium
(d) Heavy water

 

25. Alloys in which mercury is one of the metals are called
(a) Amalgams
(b) Emulsions
(c) Mixtures
(d) Solders

 

26. Diamond is the __________ form of carbon
(a) crystalline
(b) amorphous
(c) chemical
(d) alkaline

 

27. The atomic weight of uranium is
(a) 234
(b) 238
(c) 226
(d) 242

 

28. Which of the following is used as laughing gas
(a) Nitrogen trioxide
(b) Nitrogen dioxide
(c) Nitrous oxide
(d) Nitrogen tetroxide

 

29. Carbon occurs in nature in the purest form as
(a) Diamond
(b) Graphite
(c) Carbon black
(d) Coal

 

30. Which substance was the first organic chemical to be synthesized from an inorganic source
(a) Urea
(b) Hellenic acid
(c) Hydrochloric acid 
(d) Aqua regia

 

Next Post

Physics Mcqs

Physics Mcqs for the preparation of NTS, PPSC, SPSC, BPSC, KPSC, FPSC, OTS and other academic entry test and jobs tests.   16. Which is more elastic(a) Steel(b) Rubber(c) Thread(d) None of these   17. Who is credited with developing the idea of an isotope(a) Frederick Soddy(b) H. Moseley(c) James […]
physics-mcqs
%d bloggers like this: