Answer: When iron is dipped in conc. HNO3, it becomes chemically inert or passive due to the formation of a layer of iron oxide (Fe3O4) on its... View Article
Answer: Vas deferens is the biological term for the sperm duct. The ductus deferens, or the vas deferens, is a male anatomical part that is... View Article
Answer: The lyophobic colloid present in the milk is casein. A colloid is primarily a heterogeneous mixture in which the minute particles of... View Article
Answer:Â (4) They are all problems caused by deforestation Forests are home to about 80% of terrestrial biodiversity worldwide, and many... View Article
Answer: A cell is described as the smallest, basic unit of life in charge of all the processes of life. Cells are the fundamental unit of life.... View Article
Answer: The percentage of forest area in India is 24.56%. The total forest and tree cover is 24.56% of the geographical area of the country.... View Article
Answer: The melting point of water is the temperature at which it changes from solid ice into liquid water. The melting point for water is 0... View Article
Answer:Â Valence of Na is 1 The valency of an element is a measure of its combining capacity and can be defined as the number of electrons that... View Article
Answer: +1Â oxidation state The oxidation state of an atom in a chemical compound gives information on how many electrons it has lost and thus... View Article
When a metal reacts with a non-metal few changes takes place with the compound or molecules undergoing in the reaction. Let us see what happens.... View Article
Answer: The sex-determining mechanism in humans is the XY type. Humans contain 23 pairs of chromosomes. 22 pairs of chromosomes are the same in... View Article
Answer: The heart chamber has to generate enough pressure to push the blood to all the parts of the body. Arteries are blood vessels, the... View Article
Answer: Those gases which dissolves in water cannot be collected over water. Example -Â Carbon dioxide, carbon monoxide, Sulphur dioxide,... View Article
Answer: Adrenal glands are located above the kidneys. The adrenal glands are endocrine glands that perform quite a lot of functions in the... View Article
Answer: The formula of trapezoid volume is given as Where, b1 and b2 are the base of the trapezoid h is the height of the trapezoid H is... View Article
Answer: The partial charges present on an atom are always less than the unit charge (1.6 x 10-19 C) because of electron sharing effect. When... View Article
Answer: 4 The significant figures of numbers are digits to convey the meaning that contributes to its measurement resolution. Non-zero digits... View Article
Answer: The least count of an instrument is the smallest measurement that can be taken accurately with it. Pierre Vernier of France invented... View Article
Answer: Sunflowers belong to the genus Helianthus, which consists of many species. The common sunflower, the crop grown for its edible oil, is... View Article
