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Answer:

Optical telescopes are located in uninhabited places on mountains in order to avoid the distortion of starlight caused due to the atmosphere. This distortion interrupts the observation causing poor sight, reddening and addition of several absorption lines to the spectra.

Explanation:

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Answer:

Optical telescopes are located in uninhabited places on mountains in order to avoid the distortion of starlight caused due to the atmosphere. This distortion interrupts the observation causing poor sight, reddening and addition of several absorption lines to the spectra.

Answer:

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Answer:

The "BCCM" is responsible for having account relationship level of "BCP".

Business continuity coordinators are responsible for having account/relationship level business continuity plan(BCP) in place.

* The system of growing a framework for stopping and improving from viable dangers to a organization is called commercial enterprise continuity planning (BCP). In the case of a crisis, the plan ensures that employees and belongings are safeguarded and that operations can resume rapidly.

* BCP includes figuring out and defining any and all dangers that would have an effect at the company's operations, making it a critical thing of the chance control strategy.  Natural catastrophes, consisting of fires, floods, or weather-associated occurrences, in addition to cyber-attacks, are ability threats.

* BCPs are an important factor of each organisation. Threats and disruptions bring about a lack of profits and an growth in costs, ensuing in a lower in profitability. Furthermore, groups can't depend completely on coverage as it does now no longer cowl all costs or customers who illness to the competition.

Answer:

The correct option is b. Tollen's reagent or the silver mirror test can distinguish 2-pentyne and 1-pentyne.

Explanation:

Answer:

Tollens' reagent will be able to distinguish between 1- pentyne and 2- pentyne.

Explanation:

Tollens' reagent: a solution of silver nitrate and ammonia (Ag(NH₃)₂OH), and its test is known as Tollens' test or silver mirror test.

In 1-pentyne, CH₃-CH₂-CH₂-C≡CH, the terminal C≡C bond has acidic hydrogen (H⁺) . When the reagent is added, the acidic hydrogen (H⁺) is replaced by Ag⁺, giving a white precipitate.

CH₃-CH₂-CH₂-C≡CH + [Ag(NH₃)₂]⁺ → CH₃-CH₂-CH₂-C≡CAg + NH₃ + NH₄⁺

In 2-pentyne, CH₃-CH₂-C≡C-CH₃, the C≡C bond is present in the middle of the chain and has no acidic hydrogen attached to it, hence it does not give the silver mirror test.

CH₃-CH₂-C≡C-CH₃ + [Ag(NH₃)₂]⁺ → NO REACTION

Conclusion:

Tollens' test is given by 1-pentyne only.