Answer: Beryllium (Be) is not readily attacked by acids because of the presence of an oxide film on the surface of the metal. Beryllium is an... View Article
Answer: Hybridization is defined as the concept of mixing two atomic orbitals with the same energy levels to give a degenerated new type of... View Article
Answer: The seeds swell when placed in water because of imbibition. Imbibition is the process when solid surfaces absorb water and swells. It... View Article
Iodine is needed by the thyroid gland for the production of the thyroxine hormone. This hormone regulates fat, protein and carbohydrate... View Article
Answer: Yeast cell converts glucose into ethyl alcohol. The most significant distinction between wine and grape juice is the role of yeast in... View Article
Answer:Â (4) Uracil Nucleotide monomers make up DNA. A nitrogenous base is bound to the deoxyribose sugar with the phosphate moiety in each... View Article
A substitution reaction is also called a single displacement reaction, single replacement reaction, or single substitution reaction. The... View Article
Answer: Haloalkanes are the hydrocarbons in which one or more hydrogen atoms have been replaced with halogen atoms. Haloalkanes are commonly... View Article
Answer: Protozoa are unicellular eukaryotic organisms. They are heterotrophic. They may be free-living or parasitic. A single cell performs all... View Article
Answer: A mineral is a naturally occurring substance, representable by a chemical formula, that is usually solid and inorganic, and has a... View Article
The calyx is the outermost whorl of a flower. It comprises sepals, tiny leaves present at the base of a flower. If the sepals are free the calyx... View Article
Answer: Tertiary carbonium ions are the most stable due to hyperconjugation effect and +I effect of methyl group. The number of carbon groups... View Article
Answer: Mercury is the nearest planet to the Earth. Mercury is the nearest planet to the Sun. And then Venus is the second-nearest planet to... View Article
Answer: The formula for Gold(III) sulfide is Au2S3. The proposed compound gold(III) sulphide has the formula (Au2S3). There haven't been any... View Article
Answer: As the sugar dissolves in water, the crystals break down, releasing tiny particles. Sugar particles pass through the holes between the... View Article
Answer: When a liquid changes to gas, the particles absorb heat energy and they start vibrating faster and distance between them increases. On... View Article
Answer: The pitch of a screw reflects the linear distance traversed by the screw in one complete rotation. Pitch is the distance measured... View Article
Answer: Antoine Lavoiser gave the law of conservation of mass. The law of conservation of mass states that the mass in an isolated system can... View Article
Answer: Rabies is a viral disease that is spread through the animal bite such as the dog. It is caused by the infection of rabies virus. The... View Article
Pure gold is 24 carats. It is very soft so, it cannot be used for making jewellery. Hence, it is alloyed with silver or copper to make it hard to... View Article
