Class 12

Be a part of Last Mile Program for JEE 2024 Enter your JEE Main Application Number Enter DOB Enter your Phone Number I agree to Unacademy’s Terms & Privacy Policy Submit What stream to choose after 10th? Potassium dichromate is obtained by adding to the neutral yellow chromate of potassium in solution, a moderate quantity […]

d-block elements are those that have an incompletely filled d-subshell in their lowest energy state or most stable oxidation state. They are also known as transition elements. The (n-1) d subshell is included in the partially filled subshells. In the farthest shell, all d-block elements have about the same number of electrons. As a result,

Be a part of Last Mile Program for JEE 2024 Enter your JEE Main Application Number Enter DOB Enter your Phone Number I agree to Unacademy’s Terms & Privacy Policy Submit Predict Your JEE Main Rank Here Fajans’ criteria are used in inorganic chemistry to evaluate whether a chemical connection is covalent or ionic. They

f- block elements are the elements in which the last electron will enter into the f orbital, members of the third group. They are divided into two groups named lanthanides and actinides. They are placed at the bottom of the periodic table. Due to their placement and electronic configuration f, block elements are known as

The d and f block elements The d-block of the periodic table includes groups 3 to 12. The elements placed in the group 3 – 12 are called d-block elements. In these elements, d-orbitals are progressively filled along with periods. f-block elements have been placed separately at the bottom of the periodic table. The f-block

Be a part of Last Mile Program for JEE 2024 Enter your JEE Main Application Number Enter DOB Enter your Phone Number I agree to Unacademy’s Terms & Privacy Policy Submit Electrolysis  Electrolysis is a process in which a chemical change is brought about by using electric current The chemical changes occur through the loss

Be a part of Last Mile Program for JEE 2024 Enter your JEE Main Application Number Enter DOB Enter your Phone Number I agree to Unacademy’s Terms & Privacy Policy Submit Chemical elements known as actinides are found in the F-block of the periodic table. The F-block of their atoms contains their valence electrons. As

STATEMENT: The angle of incidence of an X-ray incident on a crystal surface will reflect with the same angle of scattering. Constructive interference occurs when the path difference, d, is equal to a full number of wavelengths nλ . Assume an X-ray beam is incident on a solid, forming an angle with the atom’s  planes.