A combustible gas is liberated when caustic soda solution is heated with: a.S b.NH4Cl c.I2 d.Zn

Answer:

option c is correct .

Peroxide ion .

Explanation:

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Answer:

ultra violent rays reaching the earth's surface

Answer:

UV radiation reaching earth .

Explanation:

Results of the UV radiation is

Ozone layer depletion causes increased UV radiation levels at the earth's surface.

Answer:

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Answer:

B. antibiotic

Explanation:

For GK-Penicillin was disicoverd by Alexander Fleming.

Answer

Penicillin is a/an:

A. Hormone

B. Antibiotic

C. Antipyretic

D. Vitamin

Answer

Complete step by step answer:

Penicillin is plant extract from penicillium moulds or fungi and from a group called as penicillium chrysogenum.

Let us discuss the above options one by one:

A. Hormones are various chemicals released within the human body that help in regulation and operating of multiple body parts in humans. They act as messengers and are very important for humans.

B. Any drug that kills bacteria, and such pathogens in the human body is antibiotic. And Penicillin is one among the first drugs to be used in treatment of bacterial infections and thus it is a good antibiotic.

C. Pyre means temperature, so antipyretic is a drug used to treat high fever and reduce body temperature, as we know that body cannot function at high temperature.

C. Vitamins are substances which the body needs to develop and grow. Vitamins come from 2 words: vita and amine meaning life and nitrogen. Most of the vitamins are not produced by the body, so we have to take from outside and thus help in body functioning and growth of body.

Thus, Penicillin is among the first antibiotics used to treat bacterial infections, discovered by Alexander Fleming.

Some common penicillin types are G, K, N, O, V. These can be taken as examples of penicillin and common antibiotics used in treatment of Bacterial infections.\

Thus the right answer is (B) Antibiotic

Explanation:

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