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musickatia [10]
3 years ago
14

Which of the following statements is not true?

Chemistry
1 answer:
nata0808 [166]3 years ago
6 0

Negatively charged objects attract other negatively charged objects. This is false statement.

Answer: Option A

<u>Explanation:</u>

As per the law of electricity, like charges repel each other and unlike charges attract each other. So a negatively charged object will be attracting positive and neutral charges but not another negative charge.

Similarly, a positive charged object will be attracting negative and neutral charges but not another positive charge. Thus, among the given choices, the option A stating the attraction of negatively charged object by another negatively charged object is completely false. As like charges cannot attract each other.

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Explanation:

Secondary metabolism produces a large number of specialized compounds (estimated 200,000) that do not aid in the growth and development of plants but are required for the plant to survive in its environment. Secondary metabolism is connected to primary metabolism by using building blocks and biosynthetic enzymes derived from primary metabolism. Primary metabolism governs all basic physiological processes that allow a plant to grow and set seeds, by translating the genetic code into proteins, carbohydrates, and amino acids. Specialized compounds from secondary metabolism are essential for communicating with other organisms in mutualistic (e.g. attraction of beneficial organisms such as pollinators) or antagonistic interactions (e.g. deterrent against herbivores and pathogens). They further assist in coping with abiotic stress such as increased UV-radiation. The broad functional spectrum of specialized metabolism is still not fully understood. In any case, a good balance between products of primary and secondary metabolism is best for a plant’s optimal growth and development as well as for its effective coping with often changing environmental conditions. Well known specialized compounds include alkaloids, polyphenols including flavonoids, and terpenoids. Humans use many of these compounds for culinary, medicinal and nutraceutical purposes.

I hope it's helpful!!

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3 years ago
Part i. you considered the equilibrium: fe3+(aq) + scn-(aq) fe(scn)2+(aq), and compared the color of the solutions in four test
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Answer:

The equilibrium will be shifted to lift with the formation of a brown gelatinous precipitate of Fe(OH)₃.

Explanation:

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  • The addition of NaOH will result in the formation of Fe(OH)₃ precipitate which has a brown gelatinous precipitate.
  • The formation of this precipitate cause removal and decrease of Fe³⁺ ions.
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50 Newton’s upwards.
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Answer:

100 ml = 0.1 L

I divided 100 by 1000 because 1000ml = 1L

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