The oxidation number of Mn IS +7 Let the oxidation number of Mn be x. We know that, Ox. No. of O = −2. So, Ox. no. Mn+ 4(Ox. no. O) =−1 x +... View Article
5-100 micrometre Cells fall into one of two broad categories: prokaryotic and eukaryotic. Prokaryotes (pro– = before; –karyon– = nucleus).... View Article
The pituitary gland is a pea-sized endocrine gland situated in the middle of the skull base and kept protected within a bony cavity called the... View Article
For noble gases, the radius is measured as van der Waals radius because these atoms are held together by weak van der Waals forces. Helium... View Article
Non-reducing sugars do not have free ketone or aldehyde group. These sugars have acetal in place of hemiacetal. An acetal consists of two O-R... View Article
The S.I. unit of acceleration is meter per second square or ms−2, and momentum is kg · m/s. Acceleration can be defined as the rate of... View Article
The fourteen elements following the lanthanum belong to the lanthanoid series. In the periodic table, along the bottom of the periodic table of... View Article
Coniferous vegetation is also known as Taiga vegetation. The taiga is a forest of the cold, subarctic region. The subarctic is an area of the... View Article
Let x be the oxidation number of Ni in Ni(CO)4 . Since the overall charge on the complex is 0, The sum of oxidation states of all elements in... View Article
Pyridine is less basic than dimethylamine because the lone pair of nitrogen in pyridine is delocalised. Pyridine is a heterocyclic compound... View Article
The smallest particle of an element, which may or may not have an independent existence, is called an atom. In contrast, the smallest particle of... View Article
Coordination in plants means using different parts of the plant together, which is smooth and efficient. The chemical substances which bring... View Article
The number of position isomers of C5H11Br is 3.They are bromopentane, 2-bromopentane and 3-bromopentane. Isomers are molecules that have the... View Article
In a triclinic crystal system, all the edges, as well as bond angles, are unequal. A Crystal System refers to one of the many classes of... View Article
Torque = Force x Perpendicular distance. Its dimensional formula is  [M1L2T-2] Torque is the measure of the force that can cause an object to... View Article
On reacting ethene with HCl we get chloroethane. It is an addition reaction. The reaction of alkenes with halogens is an example of the... View Article
