Daily NEET MCQ- September 10, 2022 - NEET MCQ

One Newton equals to 100000 Dynes, hence 5 N equal to 500000 Dynes. Dyne is unit of force in the CGS system.

Under ultra-violet light, three chlorine molecules add to benzene to produce benzene hexachloride. It is also known as gammaxene. Its chemical formula is C6H6Cl6 and undergoes addition reaction.

Aluminum chloride reacts with methyl chloride to form an electrophile. This electrophile attacks the π electron to form carbocation. As a result, alkylbenzene is formed along with HCl as product.

Coelom is the cavity between the body wall and gut wall. It is the fluid filled space other than lymph vessels and blood vessels. Animals are divided into coelomates, acoelomates and pseudocoelomates based on the presence or absence of the coelom or false coelom respectively.

Pseudocoelomates means those organisms with false coelom. Mesoderm in pseudocoelom is scattered into pouches. In pseudocoelomates, coelom is lined partially through mesoderm. Nematodes are examples of pseudocoelomates.

Body cavity is absent in acoelomates. In this type of animals, mesoderm helps in holding the internal organs in its own place. Coelenterates, platyhelminthes and porifera are the best examples for acoelomates.

When Gibbs free energy is positive, the reaction that occurs is nonspontaneous and a reaction occurs backward that is the products are converted into reactants. Simply the reverse reaction could occur.

Pith in monocot stem is made of rigid sclerenchymatous cells. Also, the hypodermis and large number of vascular bundles that are scattered are surrounded by sclerenchymatous cells.

These days sulphuric acid is mostly prepared by the Contact process. The acid produced by this method is free from arsenic impurities and hence can be safely used for the preparation of edible products.

The haploid ovum is formed after the second round of meiosis is completed. This haploid ovum is also called as ootid. Oogonium is the egg mother cell that is diploid and undergoes meiosis to form egg.