Which one of the following gas diffuses fastest?
- (A) Hydrogen
- (B) Helium
- (C) Fluorine
- (D) Chlorine
- (A) Hydrogen
The houbara bustard, also known as African houbara, is a large:
- (A) Fish
- (B) Mammal
- (C) Bird
- (D) Plant
- (C) Bird
The foul smell of rancid butter is due to:
- (A) Tartaric acid
- (B) Malic acid
- (C) Butyric acid
- (D) Acetic acid
- (C) Butyric acid
An acid rain affects aquatic life by clogging fish gills due to:
- (A) Lead metal
- (B) Chromium metal
- (C) Mercury metal
- (D) Aluminum metal
- (D) Aluminum metal
What is the power of hair dryer?
- (A) 1500 watts
- (B) 1800 watts
- (C) 2000 watts
- (D) 2500 watts
- (B) 1800 watts
The organic compounds used as drugs to control bleeding are:
- (A) Lipids
- (B) Vitamins
- (C) Glycerides
- (D) Proteins
- (C) Glycerides
Pure water is an example of:
- (A) Non-electrolyte
- (B) Electrolyte
- (C) Weak electrolyte
- (D) Strong electrolyte
- (C) Weak electrolyte
The rays used during brain radio therapy are:
- (A) Alpha rays
- (B) X-rays
- (C) Beta rays
- (D) Gamma rays
- (D) Gamma rays
Sea water is a resource of naturally occurring elements:
- (A) 43
- (B) 63
- (C) 71
- (D) 92
- (D) 92
How far does sunlight travel in the depth of oceans?
- (A) 100 meters
- (B) 200 meters
- (C) 300 meters
- (D) 400 meters
- (B) 200 meters
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