In the formal charge on each oxygen atom and the P – O bond order respectively are
– 0.75, 1.25
The structure of
Here, three units negative charge is shared by four O atoms and five bond pairs are shared between four P – O bonds
BO of P – O bond
6 g of the organic compound on heating with NaOH gave which is neutralised by 200 mL of 1 N HCl. Percentage of nitrogen is:
Haemoglobin is a chromoprotein having 4 atoms of Fe in each molecule. Analysis showed 0.35% Fe. Hence, its molecular weight is:
Tyrosine is one of the amino acids present in protein. Its content in protein is 0.22% and its molecular weight is . Lowest molecular weight of protein is:
Platinum salt of an organic base contains 32.5% platinum.
Hence, equivalent weight of the base is: (Pt = 195)
The electronic structure of four elements A, B, C, D are
The tendency to form electrovalent bond is largest in
Which of the following pairs will form the most stable ionic bond?
Elements have electronegativities 1.2 and 3.0, bond formed between them would be
Which of the following halides has maximum melting point?
If the electronegativity difference between two atoms A and B is 2.0, then the percentage of covalent character in the molecule is