Carbon and its Compounds

Terms and Definitions Cornell Notes in Carbon Compounds – PDF Notes Hydrocarbon Prefix and Suffix IUPAC…

Sectors of Indian Economy

Sectors of Indian Economy | STD 10 | Social Science Multiple Choice Questions Key

Chemicals from common salts

Baking Soda (Sodium Bicarbonate) Washing Soda (Sodium Carbonate) Sodium Hydroxide Plaster of Paris Water of crystallization…

Quadratic equation construction

Concept Video Any Time Online Quiz Key

Acids, Bases and Salts

Importance of pH

Triogonometry

Trigonometry Introduction Trigonometry ratios of specific angles Triogonometry Complementary angles Allied angle: Two angles are said…

Probability

Probability of a desired event = number of desired events / number of elements in the…

Light – Reflection and refraction

Reflection Laws of reflection Spherical mirrors Properties of image formed by a plane mirror Problems based…

Determination of atomic mass

Atomic mass can be determined by applying the following formula. Atomic mass = (w1A1 + w2A2)/(w1+w2)…

Easy Multiplication by a number with repeated 9 with any number with equal number of digits.

Word problems in pair of linear equations

Word problems are very important in pair of linear equations. There are four methods of solving…

Quadratic Equations

Quadratic equation formulae by Mohammed Thoufeek Audio