Iodine is a chemical element with the symbol I and atomic number 53. The molecular weight of Iodine is determined by the sum of the atomic... View Article
The oxidation number of an atom is the charge that atom would have if the compound was composed of ions. The sum of the oxidation numbers in a... View Article
Molecular Formula of hexene is C6H12 . Hexene is a colourless liquid. It contains 6 carbon atoms in a molecule.The suffix -ene means that a... View Article
Barium is a chemical element with symbol Ba and atomic number 56. It is classified as an alkaline earth metal, which is a solid at room... View Article
The molar mass of an element is its atomic weight in grams/mole (g/mol). The atomic weight for helium on the periodic table is 4.002602. All... View Article
AlCl3 has 6 covalent bonds and 2 coordinate bonds. Chlorine has 17 electrons. 10 electrons are occupied in these orbitals (1S,2S,2P orbitals).... View Article
UPSC Current Affairs Preparation: The Hindu Analysis Watch expert analysis of ‘The Hindu’ dated 25th November 2020. Important news and views to... View Article
The Economic and Political Weekly (EPW) is an important source of study material for IAS, especially for the current affairs segment. In this... View Article
Trigonometry is an important branch of mathematics that deals with finding the missing sides and angles of a right angled triangle. Trigonometry... View Article
In Algebra, the linear equation is defined as an algebraic equation, in which each term has an exponent value of 1. If the linear equation is... View Article
In geometry, a solid that is made up of four triangular faces is called tetrahedron. Also, a pyramid that has its base, triangle in shape is... View Article
Tan, cos and sin are three primary trigonometric functions or trigonometric ratios. Tan, cos and sin are abbreviations of tangent, cosine and... View Article
In trigonometry, sine is one of three primary functions. Sine function is abbreviated as sin. To calculate the sine of an angle we have to know... View Article
A circle is not a solid shape. A circle is a closed, two-dimensional figure or a flat figure. Therefore, it is a plane shape. A circle is a round... View Article
The six trigonometric identities or the trigonometric functions are Sine, Cosine, Tangent, Secant, Cosecant and Cotangent. They are abbreviated... View Article
Solution: Given an = i (n+1)2 a1 + a3 +a5+...+a25 = There are 13 odd numbers from 1 to 25. =i4 +i16+i36+...i676 = 1+1+1+...1 (since i4 = 1) = 13... View Article
