SSC
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Hydrogen, Oxygen, Nitrogen and Carbon
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Helium, Oxygen, Neon and Carbon
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Hydrogen, Titanium, Carbon, Nitrogen
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Oxygen, Chlorine, Iron, Nitrogen
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Detailed explanation-1: -In this mode, the four elements of life become the five elements of life: Oxygen, hydrogen, nitrogen, phosphorus and carbon.
Detailed explanation-2: -The six most common elements of life on Earth (including more than 97% of the mass of a human body) are carbon, hydrogen, nitrogen, oxygen, sulphur and phosphorus.
Detailed explanation-3: -In all living systems we can always find 4 basic elements: carbon, oxygen, nitrogen and hydrogen. Carbon is the basic building unit contained in living matter. The percentage of carbon in the mass of living matter is 19.4 %. Oxygen and hydrogen are present in almost all organic compounds which create living organisms.
Detailed explanation-4: -The most common elements in living things are carbon, hydrogen, nitrogen, and oxygen. These 4 elements constitute about 95% of your body weight.