Answer: The electronic configuration of iron is Fe(Z=26) =Â 1s22s22p63s23p64s23d6 Iron (Fe) is a transition metal that fills atomic orbitals... View Article
Answer: NaNO3 In the earth crust, nitrogen occurs as sodium nitrate (NaNO3) called Chile salt petre, a deliquescent crystalline sodium salt... View Article
Answer: The process of heat transfer through movement of particles of medium from one place to another is convection. Convection is the... View Article
Answer:Â According to IUPAC nomenclature, alkyl cyanides are called alkane-nitriles and phenyl cyanides are called benzonitrile. The chemical... View Article
Answer: Fluorine Fluorine is the most electronegative element, and it shows does not show a variable oxidation state. Fluorine has no oxidation... View Article
Answer: In a chemical reaction, energy is used for breaking the bonds of the reactants also energy is used in formation of new bonds. So, there... View Article
Answer: The male sex hormone 'testosterone' is secreted by male testicles. In males, testes secrete the sex hormone 'testosterone' which is... View Article
Answer: There are 2 number of unpaired electrons in Ni2+. Electronic configuration of Nickel(Ni) is Ni (Z = 28) =Â 1s22s22p63s23p64s23d8... View Article
Answer: Butanone has a functional group ketonic group (C=O). In ketones, the carbonyl group has 2 hydrocarbon groups attached to it. These can... View Article
Answer: H2O + CuSO4 → CuSO4.5H2O The reaction between H2O and CuSO4 gives CuSO4.5H2O which is blue vitriol. The end product is known as copper... View Article
Answer: Sieve tubes and companion cells are components of Phloem. Phloem is a complex permanent plant tissue. It is made up of sieve tubes,... View Article
Answer: The atomic mass of an element is the mass of one atom of that element. Average atomic mass takes into account the isotopic abundance.... View Article
Answer: Terraced farming is a method of growing crops on sides of hills or mountains by planting on graduated terraces built into the slope.... View Article
Answer: North America is the third-largest continent in the world. Geographically the North American continent has many regions and subregions.... View Article
Oxygen is the most abundant non-metal on the earth. The chemical formula of oxygen (dioxygen) is O2. This formula is given so because oxygen... View Article
Answer: (4)Â Analgin Narcotics are habit-forming or addictive analgesic drugs. Analgin is a non-addictive analgesic. Drugs are chemical... View Article
Answer: The respiration which takes place without oxygen is known as anaerobic respiration. The microorganisms like yeast break down glucose... View Article
Pure diamonds are pure carbon, although most diamonds contain some impurities. The presence of nitrogen causes the diamonds to absorb blue light,... View Article
Answer: Rice Shifting cultivation is also known as Slash-and-burn cultivation. It is a type of farming activity which involves clearing of a... View Article
We need to know the value of zero kelvin on the Celsius scale We know that C = K - 273 Substituting K=0 in the above equation we get, =... View Article