Answer:
The correct answer is option c) water and salts
Explanation:
Organic compounds contain carbon and hydrogen bonds. Both nucleic acids and proteins contain these. Water (H2O) and salts (Ex:NaCl) do not.
The pair of compounds that can be classified as inorganic from the given options are water and salts. These lack a carbon-hydrogen bond, unlike nucleic acids and proteins, which are organic.
The pair of compounds that can be classified as inorganic are water and salts. Inorganic compounds are defined as compounds that do not contain a carbon-hydrogen bond, which makes them different from organic compounds. Both water (H2O) and salts, like table salt (NaCl), do not contain any carbon-hydrogen bonds, so they are considered inorganic compounds. On the other hand, nucleic acids and proteins are both complex structures that include carbon-hydrogen bonds, making them organic compounds.
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B. There are two carbon atoms and a double carbon bond.
C. There are three carbon atoms and a double carbon bond that starts on the second carbon atom.
D. There are four carbon atoms and a double carbon bond that starts on the second carbon atom.
Gradpoint answer: a four-carbon hydrocarbon with a double bond between the second and third carbon atoms
Answer:
Explanation: The element with atomic number 20 consists 20 electrons and as atomic number is specific to an element, atomic number is of element calcium.
The nearest noble gas to calcium is argon with 18 electrons with configuartion according to afbau's rule, in which orbitals are arranged in order of increasing energies.
Thus electronic configuartion of calcium in terms of noble gas configuration is:
Answer : Option C) Lithosphere.
Explanation : Lithosphere is a layer which includes the crust and the uppermost mantle, which constitutes the hard and rigid outer layer of the Earth. The lithosphere is subdivided into tectonic plates. In these tectonic plates large amount of phosphorus is found. Whereas carbon and nitrogen in found in atmosphere not in the layers of the earth.
The availability of phosphorus is different that that of carbon and nitrogen because it is found mostly in the Lithosphere, whereas, carbon and nitrogen are found in atmosphere.