Question
Which one of the following animals can hear ultrasonic
sound?Solution
Ultrasound is a cyclic sound pressure wave with a frequency greater than the upper limit of the human hearing range. Ultrasound is thus not separated from "normal" (audible) sound based on differences in physical properties, only the fact that humans cannot hear it.
Potassium Permanganate is used for purifying drinking water, because it –
In the vulcanization process, natural rubber is heated with which element to enhance its properties?
Which statement is NOT correct regarding Zinc-ion batteries?
Which of the following metals is the lightest?
The combining power of an element is called its:
The scientific name of vitamin B12 is :
Which of the following metals is the lightest in the periodic table of elements?
Which of the following fatty acids does NOT form soap?
The chemical name of the Vitamin B6 is
What is the more common name for solid carbon dioxide?
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