Electron pair bonds-lewis and valence structures, A single covalent bond is...

A single covalent bond is build when two atoms share a pair of electrons. Triple and double bonds can be formed when two or three such pairs are shared. A Lewis structure is a repr

Vertical and diagonal relationship, I want lecture notes about vertical and...

I want lecture notes about vertical and diagonal relationship of first row elements with other elements of periodic table

Amines, Amines are soluble in organic solvents whereas ammonium salts are n...

Amines are soluble in organic solvents whereas ammonium salts are not. Is it true?   Ans) yes because amine is contain R-NH2 group where R is carbon groups so they are in polar nat

D block elements , explain why Cu2+ ion is not stable in aqueous solution?

explain why Cu2+ ion is not stable in aqueous solution?

Number of unpaired electrons in a chromic ion, The number of unpaired elect...

The number of unpaired electrons in a chromic ion Cr 3+ (atomic number = 24) is: (1) 6        (2) 4        (3) 3        (4) 1 Ans: 3

Emf series and its application,

Deutorium, write about deutorium

write about deutorium

Acidity, A sample of water collected in the field had a pH of 6.8. By the ...

A sample of water collected in the field had a pH of 6.8. By the time it was analyzed in the lab, the pH had decreased to 6.0. Give a possible explanation.

Find series of hydrogen atom spectrum electronic transition, In Balmer seri...

In Balmer series of hydrogen atom spectrum which electronic transition causes third line: (1) Fifth Bohr orbit to second one (2) Fifth Bohr orbit to first one (3) Fourth

Find the concentration of hydrogen ions, An aqueous solution has a hydroxyl...

An aqueous solution has a hydroxyl concentration of 1.75 x 10^-7mol/L. Find the concentration of hydrogen ions in this solution.