Methyl benzene can be prepared by reacting benzene with bromo-methane in the presence of
Calculate enthalpy of formation of ethylene from the following data:
Which of the following has sp2 hybridisation ?
If 0.44 g of a colourless oxide of nitrogen occupies 224 ml at 1520 mm hg and 273oC, then the compound is
The ion that can be preciitated by HCl as well as H₂S is
Which of the following can give iodometric titration?
Alkaline earth metals form ions of the formula
Which of the following isomers will have the highest boiling point ?
Which of the following is least basic?
following step is :
CH3 CH3 + Cl· → CH3 CH2 + HCl
Name the catalyst used in commercial method of preparation of phenol.
The oxidation number of S in SO₄⁻2 is
If 0.5 mol of BaCl₂ is mixed with 0.2 mol of Na₃PO₄, the maximum number of mole of Ba₃(PO₄)₂ that can be formed is
2 mol of Na3PO4 reacts with 3 mol of BaCl2 to form 1 mol Ba3(PO4)2
∴ 0.2 mol of Na3PO4 reacts with 0.3 mol of BaCl2 to form 0.1 mol Ba3(PO4)2.
Thus,Na3PO4 is limiting reagent here.