Correct Answer: A. 3

Correct Answer: D. barter

Correct Answer: D) Q will form an electrovalent bond with S

Explanation

This question is about the electron configuration of four different elements, namely P, Q, R, and S. The question provides the number of electrons for each element, which are 6, 11, 15, and 17 respectively.

Based on this information, the question is asking which of the options best describes the type of bond that would be formed between two of the elements.

Option A suggests that P will form an electrovalent bond with R. An electrovalent bond is also known as an ionic bond, which involves the transfer of electrons from one atom to another. However, the electron configuration of P and R does not suggest that this type of bond would be formed.

Option B suggests that Q will form a covalent bond with S. A covalent bond involves the sharing of electrons between two atoms. This option is a possibility given the electron configuration of Q and S, but it is not the correct answer.

Option C suggests that R will form an electrovalent bond with S. Again, this is an ionic bond, which involves the transfer of electrons from one atom to another. This option is a possibility given the electron configuration of R and S, but it is not the correct answer.

Option D suggests that Q will form an electrovalent bond with S. This is the correct answer because the electron configuration of Q and S suggests that an ionic bond would be formed between the two elements. Q has 11 electrons, which means it has one electron short of a stable configuration, while S has 17 electrons, which means it has one electron more than a stable configuration. Q can transfer an electron to S to form a stable ionic compound.

In summary, the correct answer to this Chemistry question is Option D, which suggests that Q will form an electrovalent bond with S.

Correct Answer: B. Increase the yield of PCl₃

Correct Answer: D. viewing Web pages

Explanation

The Internet explorer is used view Web pages. Internet Explorer is a free web browser, commonly called IE or MSIE, that allows users to view web pages on the internet. It is also used to access online banking, online marketing over the internet, listen to and watch streaming videos, and many more. It was introduced by Microsoft in 1995.

Correct Answer: C. By giving him her portrait with an inscription

Correct Answer: C. Interest on loans

Explanation

is charged in the profit and loss account as finance expenses

Correct Answer: C) pistil (gynoecium)

Explanation

In order for a flower to undergo pollination and form a fruit, certain parts of the flower are essential. The question is asking which part(s) are necessary for this process. The options to choose from are corolla, ovary, pistil (gynoecium), ovules, and receptacle. The corolla is the part of the flower that consists of the petals. While the petals may be important for attracting pollinators to the flower, they are not essential for pollination or fruit formation. The ovary is the part of the flower that contains the ovules and eventually develops into a fruit. While the ovary is important for fruit formation, it is not the only essential part. The pistil, also known as the gynoecium, is the female reproductive part of the flower. It consists of the stigma, style, and ovary. The stigma is the sticky surface that captures pollen, the style is the stalk that connects the stigma to the ovary, and the ovary contains the ovules that become the seeds. The pistil is essential for pollination and fruit formation. Ovules are the structures within the ovary that develop into seeds after fertilization. While ovules are necessary for seed production, they are not the essential part for pollination and fruit formation. The receptacle is the base of the flower to which all parts of the flower are attached. While the receptacle is important for providing support to the flower, it is not essential for pollination or fruit formation. Therefore, the correct answer to the question is option C, the pistil (gynoecium), as it is the essential part of the flower for pollination and fruit formation.

Correct Answer: D. dumping

Explanation

Dumping is a term used in the context of international trade. It's when a country or company exports a product at a price that is lower in the foreign importing market than the price in the exporter's domestic market. Because dumping typically involves substantial export volumes of a product, it often endangers the financial viability of the product's manufacturers or producers in the importing nation

Correct Answer: (d) Gen Ibrahim Babangida