Let’s consider the oxidation number of C in C6H12O6 as xWe know that the oxidation of H is -1 and that of O is -2Also, the given formula is... View Article
Answer: 0.029 mol The atomic mass of PbO = 223 The number of moles in 6.5 g of PbO = 6.5/223 = 0.029 The atomic mass of HCl = 36.5 The number of... View Article
The coordination number of an atom in a given molecule or a crystal refers to the total number of atoms, ion, or molecules bonded to the atom in... View Article
Answer: Both (b) and (d) A precipitate of barium sulphate is obtained so it’s a precipitation reaction. Also, when two compounds react,... View Article
Answer: a) H3PO4 That’s because P-H bonds are not ionizable to give H+ whereas, the H atoms which are attached with oxygen in P-OH form... View Article
Fluorobenzene (C6H5F) can be synthesized in the laboratory from aniline by diazotisation followed by heating the diazonium salt with HBF4. The... View Article
The stability of lyophilic sols is due to the presence of a charge and the solvation of colloidal particles. On the other hand, the stability of... View Article
Oxidation is a process that involves: a) addition of oxygen b) removal of oxygen c) addition of hydrogen d) removal of hydrogen Answer: a)... View Article
When copper nitrate or Cu(NO3)2 undergoes heating, a metal oxide, nitrite and oxygen will be the results. 2Cu(NO3)2 → 2CuO + 4NO2 + O2 However,... View Article
Uses of quick lime are:It is used in the manufacturing of cement, paper, and high-grade steel.It is the cheapest alkali available which is an... View Article
Bleaching Powder is Calcium Oxychloride and its chemical formula is CaOCl2. The chemical equation to represent the action of dilute hydrochloric... View Article
Answer: (iv) Only (d) is correct The change of colour in acid and base depends on the type of indicator. A substance that can be added to the... View Article