Parachor: Macleod in 1923 gave the following relation between the surface tension (γ) and density (D) for a normal liquid- C=γ 1/4 /(D −d) where d is vapour density of the liquid at given temperature and C is constant. In 1924, Sugden modified the above equation …
IR spectra of Fe 2 (CO) 9 shows two ν CO bands. Explain. Fe 2 (CO) 9 has two types of CO groups- three bridging and six terminals. Terminal CO groups have bond order about three and bridging CO groups have bond order about two. The bridging CO behaves as k…
Calculation of Bond Order of Oxide based Acid Radials NOTE: This formula is very very important for NEET, IIT-JEE, GATE, IIT-JAM, CSIR, SLET, DRDO, TIFR, ICT, IISc, and other entrance exams. Chem Study Oxidation Number Calculator of Acid Radical…
Derivation of Henderson-Hasselbalch Equation Read More Henderson-Hasselbalch Calculator pH: pKa: Acid Concentration ([A⁻]): Base Concentration ([HA]):���������������������…
NIOS 12 Chemistry, Physics, Maths and Biology Sample Papers and Marking Scheme 2025 Prepare for your NIOS Sr. Secondry (12th) exams with these sample papers designed specifically for the 2025 exam and marking scheme for Chemistry, Physics, Maths, and Biology…
CUET-UG Chemistry Sample Papers CUET(UG) Chemistry Sample Paper for Practice Exam 2024 The Common University Entrance Test (CUET (UG) - 2024) will conducted by NTA the for admission into all UG Programmes in all Central Universities across the country. Th…
Hybridisation describes that atomic orbitals combine and redistribute their energies to form new orbitals which are known as hybrid orbitals. These are identical with respect to energy and shape. Shapes of the hybrid orbital depends upon contribution of s, p orb…
Refractive index of a liquid changes not only with the wavelength of light but also with the temperature. It can not, therefore, provide a satisfactory comparison of refractive powers of different liquids relative to their constitution. To eliminate the effect …
The acid-base indicator ( is a dye that changes colour when pH changes ) is usually an organic compound that is itself a weak acid or weak base. So, they have their own pH values. They change their colors within a definite pH range. For example Methylorange chan…
Measurement of Diffraction Angle: Rotating crystal method (Braggs, 1913) Powder method (Debye and Scherrer, 1916) The measurement of diffraction angle, θ, required for Bragg equation can be done in two ways. 1. Rotating Crystal Method (Braggs, 1913) 2. Pow…
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