1.
What kind of odor is released from rotten egg?
Correct Answer
A. Pungent smell
Explanation
When an egg rots, it releases a pungent smell. This odor is often described as foul or rotten, and it is caused by the breakdown of proteins in the egg. The presence of sulfur compounds, such as hydrogen sulfide, is responsible for the pungent smell. These compounds are produced by bacteria that thrive in the decaying egg. Therefore, the correct answer is "Pungent smell."
2.
What is the smell of chocolate?
Correct Answer
A. Sweet smell
Explanation
Chocolate has a distinct and recognizable aroma that is often described as sweet. The smell of chocolate is associated with its rich and indulgent taste. The sweet smell of chocolate is a result of the combination of various compounds present in cocoa beans, such as vanillin, which gives it its characteristic scent. This sweet smell is often enticing and can evoke feelings of pleasure and anticipation.
3.
Which of these refers to the ability to smell?
Correct Answer
C. Olfactory sense
Explanation
The correct answer is olfactory sense. Olfactory sense refers to the ability to smell. It is one of the five senses and is responsible for detecting and interpreting different odors. The olfactory sense is located in the nasal cavity, where specialized cells called olfactory receptors detect and transmit information about different smells to the brain for processing. It plays a crucial role in our ability to perceive and distinguish various scents in our environment.
4.
What is smell of blood?
Correct Answer
D. Metallic odor
Explanation
Blood has a distinct metallic odor due to the presence of iron in hemoglobin, which is the oxygen-carrying protein in red blood cells. This metallic odor is often described as a combination of metallic, coppery, or iron-like smell. The other options, such as woody, citrus, or sharp smells, are not typically associated with the smell of blood.
5.
Which of these does not smell like cannabis?
Correct Answer
A. Carrot
Explanation
The question asks which option does not smell like cannabis. Cannabis has a distinct smell that is often described as pungent and earthy. While beer, spider flower, and skunk cabbage could potentially have strong or unique smells, carrots do not have a smell that is similar to cannabis. Therefore, the correct answer is carrot.
6.
Which of these does not smell like rotten egg?
Correct Answer
A. Tomatoes
Explanation
Tomatoes do not smell like rotten egg. The other options, such as a decomposing rat, organic matter, and a covered shoe, can produce a foul odor similar to that of rotten eggs. However, tomatoes generally have a pleasant smell and do not emit a rotten egg odor.
7.
What element smells like rotten egg?
Correct Answer
D. Sulphur
Explanation
Sulphur is the correct answer because it is known to have a strong and unpleasant smell, often described as similar to rotten eggs. This distinct odor is due to the presence of hydrogen sulphide gas, which is released when sulphur compounds decompose. Therefore, when sulphur is present, it can emit a foul smell reminiscent of rotten eggs.
8.
What is responsible for the smell of urine?
Correct Answer
D. Ammonia
Explanation
Ammonia is responsible for the smell of urine. When proteins are broken down in the body, they produce ammonia as a waste product. This ammonia is then excreted in the urine, giving it its characteristic odor.
9.
What smell can be found around sufferers of kidney diseases?
Correct Answer
D. Ureamic smell
Explanation
The ureamic smell can be found around sufferers of kidney diseases. This is because kidney diseases can lead to a buildup of urea in the body, which is then excreted through sweat and breath. This can result in a distinct smell that is often described as ammonia-like or urine-like. Therefore, the ureamic smell is commonly associated with kidney diseases.
10.
What of these smell irritate rats?
Correct Answer
D. Pungent smell
Explanation
Rats have a strong sense of smell and are known to be repelled by strong, pungent odors. Pungent smells are often associated with substances that are irritating or toxic to rats. These smells can include strong chemicals, certain spices, or even certain types of plants. The pungent smell is likely to deter rats from entering an area or approaching a certain object, making it an effective way to repel them.