Economy is an important part of the UPSC prelims and mains exams; this series titled ‘Economy This Week’ has been initiated to address the need... View Article
28 ml of 0.1 m oxalic acid solution requires 10 ml of KMnO4 for titration. 10 ml of this sample of KMnO4 when added to excess of NH2OHliberates... View Article
The electronic configuration of an element is a symbolic notation of the manner in which the electrons of its atoms are distributed over... View Article
A logarithm is defined as the power to which number must be raised to get some other values. It is the most convenient way to express large... View Article
We need to find the value of tan (-30) First let us find the value of tan 30 We can also represent the tangent function as the ratio of the... View Article
In geometry, the octagonal prism is the sixth in an infinite set of prisms, formed by square sides and two regular octagon caps. If faces are all... View Article
Scientific notation is a form of presenting very large numbers or very small numbers in a simpler form. Scientific notation is used to represent... View Article
We need to find the exact value of cos 36 using the sum and difference, double angle or half angle formulas Let A = 18° Therefore, 5A =... View Article
x2 - 5x + 6 We need to find the factors of given equation Let us try factorizing this polynomial using splitting the middle term method.... View Article
We need to find the value of log 1 First let us know the definition of logarthim From the definition of logarithm function, logab = x can be... View Article
Isomerism is the phenomenon in which more than one compounds have the same chemical formula but different chemical structures. Chemical compounds... View Article
Dry ether is used in Wurtz reaction. Before knowing why dry ether is used let us first know what Wurtz reaction is. Wurtz’s reaction is an... View Article
We need to evaluate 1+sin /1-sinx 1+sin /1-sinx To the given equation we will multiply and divide by [ 1 + sinx] So we get the equation as (1... View Article
In Mathematics, means any expression which, when multiplied by another expression, gives unity (1) as a result. The reciprocal of a fraction... View Article
