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Q. Physical Properties of group16? Similar to the groups discussed earlier. The metallic character in Group 16, increases with increasing atomic number. Oxygen and sulphur are
Why agar agar is called as an inert electrolyte?
The de-Broglie wavelength of a particle with mass 1gm and velocity 100m/ sec is: (1) 6.63 x 10 -53 m (2) 6.63 x 10 -34 m (3
defference between diffusion and osmosis
parts of ac generator
(a) Assign a reason for each of the following statements: (i) Alkylamines are stronger bases than arylamines. (ii) Acetonitrile Is preferred as solvent for carrying out sever
A nucleophile is a chemical species that donates an electron pair to an electrophile to form a chemical bond in a reaction. All molecules or ions with a free pair of electrons or a
Q. What is the electromagnetic spectrum? Ans. Light is a very small slice of the electromagnetic spectrum, just the wavelengths that our eyes can see, which range from abo
Potassium permanganate is prepared from pyrolusite (MnO 2 ) . Pyrolusite is fused with KOH in the presence of atmospheric oxygen or an oxidising agent like potassium nitrate or po
Q. How to evaluate mass number? An isotope of an element is recognized by its mass number which is the sum of the number of protons and neutrons in the atom's nucleus. Mas
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