CUET Questions — Chemistry

Q35. t99.9% with respect to t90% for a first order reaction is:

Q18. Number of ions produced on electrolysis of [Co(NH₃)₆]Cl₃ which gives 3 mol of AgCl on reacting with AgNO₃, are:

Q49. An organic compound C₃H₆O does not give a precipitate with 2,4-dinitrophenylhydrazine and also does not react with metallic sodium. It could be

Q40. From the following, choose the one which are not secondary haloalkanes: (A) 2-Bromopentane (B) 1-Bromo-3-methylbutane (C) 3-Bromopentane (D) 2-Bromo-2-methylbutane (E) 2-Bromo-3-methylbutane Choo

Q19. Phenol is brominated in solvent CS2 at low temperature. The product formed are:

Q33. In the 3d series of transition elements, the element more likely to exhibit + 1 oxidation state is:

Q20. Osmotic pressure of solution formed by mixing 50 ml of 0.2 M urea and 50 ml of 0.4 m glucose aqueous solution at 298 K will be: (R = 0.083 L atm K-1 mol-1)

Q4. A reaction takes 30 minutes to complete 50% of the reaction and takes 45 minutes to complete 75% of the reaction. The order of the reaction is:

Q2. Match List - I with List - II. List - I (A) Cheese (B) Cell fluids (C) Hair cream (D) Clouds List - II (I) Emulsions (II) Aerosol (III) Gel (IV) Sol Choose the correct answer from the options give

Which of the following will show "Tyndall Effect"? (A) Mixture of water and milk (B) Sunlight passing through a canopy of dense forest (C) Solution of copper sulphate (D) Light entering a smoke-filled

Q35. t99.9% with respect to t90% for a first order reaction is:

Q27. Increasing order of oxidation states of transition metal oxides will be: (A) TiO2 (B) MnO4 (C) VO2+ (D) CrO4- (E) Ni (CO)4 Choose the correct answer from the options given below:

Q39. Which of the following compounds undergo predominantly SN2 reaction with NaOH in a polar aprotic solvent? (a) H2CO-CH2-Cl (b) H2N-CH2-Cl (c) CH2-Cl (d) O2N-CH2-Cl Choose the most most appropriate

Q4. Which of the following statements are not correct? A. Phenol is used to prepare analgesic drugs. B. Solubility of phenol in water is more than that of chlorobenzene. C. Phenol is neutralised by so

Q26. NH2 (image: Benzene-NH2 'A' then NaNO2+HCl (0-5°C) -> 'B' then CuCN/KCN -> 'C') The compound B is: (a) Acetanilide (b) Benzonitrile (c) Benzamide (d) Benzene

Q11. Which of the following is the correct range of critical micelle concentrations (CMC) for soaps? (a) 10² to 10⁴ mol/L (b) 10⁻⁵ to 10⁻⁸ mol/L (c) 10⁻¹ to 10⁻³ mol/L (d) 10⁻⁴ to 10⁻³ mol/L

Q27. The IUPAC name of the complex [Pt(NH₃)₂Cl(NH₂CH₃)]Cl is:

Q36. When silver or gold is leached as follows, 4M + 8CN⁻ + 2H₂O + O₂ → ____ the product is: (M = Ag or Au)

Q31.Coagulating power of an ion for a colloidal solution depends on:

Q7. The edge lengths of the unit cells in terms of the radius of spheres constituting fcc, bcc & simple cubic unit cells respectively are: (a) 2√2r, 4r/√3, 2r (b) 4r/√3, 2√2r, 2r (c) 2r, 2√2r, 4r/√3 (