Chemistry General Knowledge Questions and Answers: Chemistry GK
Chemistry-General Knowledge
21. Glass is made of a mixture of
A. Quartz and mica
B. Sand and salt
C. Sand and silicates
D. None of these
Answer : C. Sand and silicates
22. Which one of the following is used as a filter in rubber tyres?
A. Graphite
B. Coal
C. Coke
D. Carbon black
Answer : D. Carbon black
23. Which one of the following polymeric materials is used for making bullet proof jackets?
A. NYLON 6.6
B. RAYON
C. KEVLAR
D. DACRON
Answer : C. KEVLAR
24. Which alloy contains nickel?
A. Brass
B. Bronze
C. Invar
D. Solder
Answer : C. Invar
25. Which one of the following elements is not present in stainless steel?
A. Iron
B. Tungsten
C. Chromium
D. Nickel
Answer : B. Tungsten
26. Bronze is an alloy of
A. Tin and zinc
B. Iron and zinc
C. Copper and zinc
D. Copper and tin
Answer : D. Copper and tin
27. Which of the following is a supercooled liquid?
A. Teflon
B. Glass
C. Mercury
D. Ice cream
Answer : B. Glass
28. Curd is sour due to presence of
A. Acidic acid
B. Tartaric acid
C. Lactic acid
D. Oxalic acid
Answer : C. Lactic acid
29. What are Rubies and Sapphires chemically known as
A. silicon dioxide
B. aluminium oxide
C. lead tetraoxide
D. boron nitride
Answer : B. aluminium oxide
30. Acid rain contains high levels of
A. oxalic acid
B. acetic acid
C. sulphuric and nitric acids
D. carbolic acid
Answer : D. carbolic acid
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Rajesh Bhatia
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