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In nature, calcium, an important element, are always found as a compound such as calcium carbonate and calcium fluoride.         
  • a)
    In nature, calcium, an important
  • b)
    element, are always found as a compound
  • c)
    such as calcium carbonate
  • d)
    and calcium fluoride.
  • e)
    None of these
Correct answer is option 'B'. Can you explain this answer?
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Most Upvoted Answer
In nature, calcium, an important element, are always found as a compou...
The Nature of Calcium

Introduction
Calcium is an important element that is essential for various biological processes. In nature, calcium is always found as a compound, and it is rare to find it in its pure elemental form. This answer will explain why calcium is always found as a compound.

Explanation
The reason why calcium is always found as a compound is due to its chemical properties. Calcium is a highly reactive metal, and it easily reacts with other elements to form compounds. Additionally, calcium has a high affinity for oxygen, and it readily reacts with oxygen to form calcium oxide (CaO) or calcium hydroxide (Ca(OH)2). Calcium also readily reacts with water to form calcium hydroxide and hydrogen gas.

Calcium Compounds in Nature
Calcium compounds are abundant in nature, and they are found in various forms. Some of the most common calcium compounds found in nature include:

- Calcium Carbonate (CaCO3): This compound is found in rocks, shells of marine organisms, and in the form of minerals such as calcite and aragonite.

- Calcium Fluoride (CaF2): This compound is found in minerals such as fluorite and fluorspar.

- Calcium Phosphate (Ca3(PO4)2): This compound is found in bones, teeth, and rocks.

- Calcium Sulfate (CaSO4): This compound is found in rocks, soil, and in the form of minerals such as gypsum and anhydrite.

Conclusion
In conclusion, calcium is always found as a compound in nature due to its highly reactive nature and its affinity for oxygen and water. Calcium compounds are abundant in nature, and they play essential roles in various biological and geological processes.
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Community Answer
In nature, calcium, an important element, are always found as a compou...
Since calcium is single element we are talking about in this paragraph, instead of "are" "is" should be used
"element, is always found as a compound"
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Read the passage and answer the question based on it.Small beginnings can have great endings—sometimes. As a case in point, note what came of the small, original effort of a selftrained back-country Quaker youth named John Dalton, who along towards the close of the eighteenth century became interested in the weather, and was led to construct and use a crude water-gauge to test the amount of the rainfall. The simple experiments thus inaugurated led to no fewer than two hundred thousand recorded observations regarding the weather, which formed the basis for some of the most epochal discoveries in meteorology, as we have seen. But this was only a beginning. The simple rain-gauge pointed the way to the most important generalization of the nineteenth century in a field of science with which, to the casual observer, it might seem to have no alliance whatever. The wonderful theory of atoms, on which the whole gigantic structure of modern chemistry is founded, was the logical outgrowth, in the mind of John Dalton, of those early studies in meteorology.The way it happened was this: From studying the rainfall, Dalton turned naturally to the complementary process of evaporation.He was soon led to believe that vapor exists, in the atmosphere as an independent gas. But since two bodies cannot occupy the same space at the same time, this implies that the various atmospheric gases are really composed of discrete particles. These ultimate particles are so small that we cannot see them—cannot, indeed, more than vaguely imagine them—yet each particle of vapor, for example, is just as much a portion of water as if it were a drop out of the ocean, or, for that matter, the ocean itself.But, again, water is a compound substance, for it may be separated, as Cavendish has shown, into the two elementary substances hydrogen and oxygen. Hence the atom of water must be composed of two lesser atoms joined together. Imagine an atom of hydrogen and one of oxygen. Unite them, and we have an atom of water; sever them, and the water no longer exists; but whether united or separate the atoms of hydrogen and of oxygen remain hydrogen and oxygen and nothing else.Differently mixed together or united, atoms produce different gross substances; but the elementary atoms never change their chemical nature—their distinct personality.It was about the year 1803 that Dalton first gained a full grasp of the conception of the chemical atom. At once he saw that the hypothesis, if true, furnished a marvellous key to secrets of matter hitherto insoluble - questions relating to the relative proportions of the atoms themselves. It is known, for example, that a certain bulk of hydrogen gas unites with a certain bulk of oxygen gas to form water. If it be true that this combination consists essentially of the union of atoms one with another (each single atom of hydrogen united to a single atom of oxygen), then the relative weights of the original masses of hydrogen and of oxygen must be also the relative weights of each of their respective atoms. If one pound of hydrogen unites with five and one-half pounds of oxygen (as, according to Daltons experiments, it di d), then the weight of the oxygen atom must be five and one-half times that of the hydrogen atom. Other compounds may plainly be tested in the same way. Dalton made numerous tests before he published his theory. He found that hydrogen enters into compounds in smaller proportions than any other element known to him, and so, for convenience, determined to take the weight of the hydrogen atom as unity. The atomic weight of oxygen then becomes (as given in Daltons first table of 1803) 5.5; that of water (hydrogen plus oxygen) being of course 6.5. The atomic weights of about a score of substances are given in Daltons first paper, which was read before the Literary and Philosophical Society of Manchester, October 21, 1803. I wonder if Dalton himself, great and acute intellect though he had, suspected, when he read that paper, that he was inaugurating one of the most fertile movements ever entered on in the whole history of science?Q.It can be inferred from the passage that

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In nature, calcium, an important element, are always found as a compound such as calcium carbonate and calcium fluoride.a)In nature, calcium, an importantb)element, are always found as a compoundc)such as calcium carbonated)and calcium fluoride.e)None of theseCorrect answer is option 'B'. Can you explain this answer?
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In nature, calcium, an important element, are always found as a compound such as calcium carbonate and calcium fluoride.a)In nature, calcium, an importantb)element, are always found as a compoundc)such as calcium carbonated)and calcium fluoride.e)None of theseCorrect answer is option 'B'. Can you explain this answer? for CLAT 2025 is part of CLAT preparation. The Question and answers have been prepared according to the CLAT exam syllabus. Information about In nature, calcium, an important element, are always found as a compound such as calcium carbonate and calcium fluoride.a)In nature, calcium, an importantb)element, are always found as a compoundc)such as calcium carbonated)and calcium fluoride.e)None of theseCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for CLAT 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In nature, calcium, an important element, are always found as a compound such as calcium carbonate and calcium fluoride.a)In nature, calcium, an importantb)element, are always found as a compoundc)such as calcium carbonated)and calcium fluoride.e)None of theseCorrect answer is option 'B'. Can you explain this answer?.
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