List of top Questions asked in BCECE

Which of the following do not contain carbon-oxygen double bonds?
How do you distinguish chlorobenzene A C from benzyl chloride ?
Identify the monomers from the following.
Reaction of acetone with HCN gives
Dissolving 120 g of urea in 1000 g of water gave a solution of density 1.15g/mL. The molarity of the solution is
The standard emf of galvanic cell involving 3 moles of electrons in its redox reaction is 0.59 V. The equilibrium constant for the reaction of the cell is
Which of the following electrolytic solutions has the least specific conductance?
58.5 gm of NaCl and 180 gm of glucose were separately dissolved in 1000 ml of water. Identify the correct statement regarding the elevation of boiling point (b.p.) of the resulting solutions.
A 5.2 molal aqueous solution of methyl alcohol, CH3OH is supplied. What is the mole fraction of methyl alcohol in the solution?
The potential of a hydrogen electrode at pH=10 is
Some meta-directing substituents in aromatic substitution are given. Which one is most deactivating?
Alkyl halides react with dialkyl copper reagents to give
Which of the following acids does not exhibit optical isomerism ?
Which of the following reactions will not result in the formation of carbon-carbon bond?
The compound formed as a result of oxidation of ethyl benzene by KMnO4 is
When 2-butyne is treated with Pd BaSO4; the product formed will be
Which of the following has highest knocking effect in IC engine?
Among the electrolytes Na2SO4. CaCl2, Al2(SO4)3 and NH4 Cl, the most effective coagulating agent for Sb2S3, sol is
The hydrocarbon which can react with sodium in liquid ammonia is
Which one of the following is an example for homogenous catalysis ?
Which of the following statements is incorrect regarding physiosorption ?
When a sulphur sol is evaporated, sulphur is obtained. On mixing with water, sulphur sol is not formed. The sol is
Gold numbers of protective colloids A, B, C and D are 0.50, 0.01, 0.10 and 0.005 respectively. The correct order of their protective powers is
Plexiglass is a commercial name of
Among cellulose, poly vinyl chloride (PVC), nylon and natural rubber, the polymer in which intermolecular forces of attraction are weakest is