ECAT - University of Engineering and Technology (UET) Lahore 2005 Past Paper with Answers

Practice the ECAT - University of Engineering and Technology (UET) Lahore 2005 past paper with 50 solved MCQs, answers and topic coverage.

50 solved MCQs across 1 approved paper

Lowest possible principal quantum number is …………..Answer: 1 Which one of following is non-polar molecule ………….Answer: CH₄ H∆ is always negative for ……………… reactions.Answer: Exothermic reactions Dust particles in air are example of a mixture of type ………………Answer: Suspension The difference of BP’s of substances of a mixture is utilized in the separation technique of ……………Answer: Fractional distillation The solubility depends on …………..Answer: Nature of solute and solvent Which one of following belong to group IV-A ( Pb, Sb, Ba, Fe)Answer: Pb The highest ionization energy in 5th group is of ………….Answer: Nitrogen (N) The catalyst used to convert SO₂ to SO₃ is ………………….Answer: Vanadium(V) oxide (V₂O₅) When gypsum loses ¾ of water then the hemihydrate formed has formula ………….Answer: CaSO₄·½H₂O Down cell is used to prepare…………Answer: Sodium metal Aqua regia consists of ………..Answer: 3 parts HCl + 1 part HNO₃ H₄P₂O₇ is the formula of …………..Answer: Pyrophosphoric acid Bleaching powder is made by passing chlorine over …………Answer: Calcium hydroxide In transition elements color formation is due to …………..Answer: D–d electronic transitions The formula of tetramminedichlorodinitroplatinum(IV)sulphate is ………..Answer: [Pt(NH₃)₄Cl₂(NO₂)₂]SO₄ Production of vegetable ghee involves ………….Answer: Hydrogenation CH₂–COOH = NH₂ is the formula of ………….Answer: Glycine Phosphorus is important in the development of …………Answer: Seed germination Which of these is not a nucleophile ……………Answer: BF₃