36. The carbon tetrachloride is also known as –
B. Marsh Gas
D. Mustard Gas
37. Which of the following is the main ingredient of Cement –
38. During the first world war which of the following gas was used as a chemical weapon?
A. Mustard Gas
C. Hydrogen Cyanide
D. Burning Vapor
39. Which of the following is to be found in the tomato sauce?
A. Lactic Acid
B. Acetic Acid
C. Citric Acid
D. Oxalic Acid
40. The aqueous solution of 40% formaldehyde is called –
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