Question 2.8: What is the number of photons of light with a wavelength of 4000 pm that provide 1 J…
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Question 2.7: Calculate the wavelength frequency and wave number of a light wave whose period is 2.0 × 10–10 s.…
Class 11 Chemistry Chapter 2 Question 2.1 https://www.youtube.com/watch?v=_lNTTItFsbg&t=32s Question 2.1: (i) Calculate the number of electrons which will together weigh…
https://www.youtube.com/watch?v=wPSp-xSYWsw Question 2.4: Write the complete symbol for the atom with the given atomic number (Z) and atomic mass (A)…
https://www.youtube.com/watch?v=6-di0ujG_Ew Question 2.3: How many neutrons and protons are there in the following nuclei? 136C, 168O, 2412Mg, 5626Fe, 8838Sr…
Important Questions of Periodic Classification of Elements Class 11 Important Questions of Periodic Classification of Elements Class 11 Que 1.…
Important Questions Class 11 Chemistry – Structure of Atom Important Questions Class 11 Chemistry Que 1. Calculate the charge of…
How to Find the Neutrons, electrons, and Protons Calculate the number of electrons, protons, and neutrons in the following species.…
Value-Based Questions Class 11 Chemistry Chapter 7 According to Arrhenius’s theory, acids are substances that dissociate in water to give…
Sample Paper Class 11 Chemistry This post contains a detailed syllabus for Class XI Chemistry along with a Solved Sample…