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Q.5- ………….is also known as Marsh Gas.?

(a)Ethane (b) Propane (c) Methane (d) Butane




Q.6- Which Gas use in the form of Biological Weapon in the


First World War?


(a)Propane (b) Butane (c) Ethylene (d) CO




Q.7- Which Acid Found in red ant….


(a) Lactic acid (b) Formic acid (c) Malic acid (d) Benzoic acid

(b)


Q.8- which Gas plays a significant role in the depletion of OZONE


Layer.?




(a) Methane (b) Propane (c) Ethane (d) CFC




Q.9- Solution of acetic acid (……………) is called Vinegar.?

(a)2%-3% (b) 10%-20% (c) 4%-6% (d) 20%-40%






Q.10- The Human Beings Feel tired due to the accumulation of

……… acid in the Muscles.


(a) Malic (b) Tartaric (c) Acetic (d) Lactic











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