Chemistry
Answer
(a) Covalent bond — The chemical bond that is formed between two combining atoms by mutual sharing of one or more pair of electrons is called a covalent bond. Depending on the number of electron pairs shared : bond is single [-], double [=], or triple [≡] covalent.
(b) Co-ordinate bond — The bond formed between two atoms by sharing a pair of electrons, provided entirely by one of the combining atoms but shared by both is called a coordinate bond.
Related Questions
Write the balanced chemical equation for the following.
(a) Lead nitrate is treated with hydrochloric acid.
(b) Zinc oxide is treated with potassium hydroxide.
(c) Silver nitrate is treated with sodium cyanide.
(a) State whether the following statements are True or False. Justify your answer.
(1) According to Mendeleev, periodic properties of elements are periodic functions of their atomic number.
(2) Non-metals form oxides that are basic in nature.
(b) Write the chemical reaction of Ammonium hydroxide with soluble salt of lead (Pb2+ ion).
Solve
A compound has the following percentage composition by mass, carbon 14.4%. hydrogen 1.2% and chlorine 84.5%. Determine the empirical formula of this compound. (H=1, C=12 and Cl=35.5)
State the conditions required for the following reactions
(a) Conversion of potassium nitrate to potassium bisulphate.
(b) Conversion of nitrogen and hydrogen to ammonia.
(c) Conversion of ammonia to nitric oxide.