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Answer 1

A combination of metal or metals when aggregated with more than one other element or metals is known as an alloy. An alloy is usually an impure metal, where impurities denote the undesirable elements.

Complete step by step solution:
-A combination of a metal with at least one or more metal or non-metal is known as an alloy.
-A combination of metal to metal or metal to nonmetal essentially be a part of a solid solution, a compound, or a mixture with one another to be known as an alloy.
-Alloys depending on the atomic arrangement are classified as substantial or interstitial alloys. Alloys are thus categorized as homogeneous (which consists of a single-phase), or heterogeneous (which consists of two or more phases) on an intermetallic.
-Metals have a high melting point but when combined with metal or nonmetal to make an alloy, the melting point of the alloy lowers due to the presence of non-metal in it behaves as an impurity and restricts in raising to the high melting point. So, option (B) is not correct.
-Corrosion-resistant alloys (CRAs) provides essential long term corrosion resistance property to various components which are exposed to environments associated with oil and gas production. Some key environmental parameters which influence the corrosion properties of corrosion-resistant alloys (CRAs) include temperature, the partial pressure of carbon dioxide, absence or presence of sulphur, environment pH, chloride ion concentration and partial pressures of hydrogen sulphide gas.
-Most of the metals at room temperature are solid and have a characteristic silvery shine. So alloys also exhibit the property of shine.

Hence, the correct answer is option B.

Note: Here are a few terms associated with an alloy which we must know. The metal in which another metal is combined forms the base of it thus it is known as the base metal. The base metal is also called primary metal, or the matrix or the solvent. The other metal which is mixed with it is known as a second constituent of the solutes. If an alloy requires the combination of only two kinds of atoms, or three kinds of atoms, or four kinds of atoms, or five kinds of atoms then the combination of the alloy is called as binary alloy, ternary alloy, quaternary alloy, quinary alloy respectively.