CUET Questions — Chemistry
494 solved questions with detailed explanations
Q45. In hydrogen fuel cell, the reactants are bubbled through which electrodes?
Q29. The correct statement about 4f-series elements is: (a) Paramagnetism falls to minimum in Nd. (b) Lu3+ ions are bright green in aqueous solution. (c) Promethium is artificially synthesised 4f seri
Q48. Which of the following compound most readily undergoes nucleophilic addition reaction? (a) Formaldehyde (b) Acetone (c) Acetaldehyde (d) Di-tert-butyl ketone
Q34. Arrange the following in decreasing order of their boiling point (I) CH3-CH2-OH (II) CH3-O-CH3 (III) CH3-CH2-CH3 (a) I > II > III (b) II > III > I (c) III > I > II (d) II > I > III
Q28. Which gas is used for the manufacturing of Bleaching Powder?
Q35. p-Hydroxyazobenzene is also called as (a) Yellow dye (b) Red dye (c) Orange dye (d) Violet dye
Q43. White phosphorus on reacting with NaOH gives NaH2PO2 and PH3 as products. This is an example of. (a) Dimerisation reaction (b) Disproportionation reaction (c) Condensation reaction (d) Precipitat
Q19. Reaction occurring at cathode is HgO + H2O + 2e- → Hg (l) + 2 OH- Above reaction is found in: (a) Leclanche cell (b) Mercury cell (c) Fuel cell (d) Ni-Cd-cell
Q24. Match List-I with List-II: List-I (A) CH3CH2Br + alc. KOH → (B) CH3CH2Br + aq. KOH → (C) CH3CH2Br + KNO2 → (D) CH3CH2Br + AgNO2 → List-II (I) CH3CH2NO2 (II) CH2=CH2 (III) CH3CH2ONO (IV) CH3CH2OH
Q48. The optimum pH for carrying out the reaction of aldehyde with hydroxylamine to form oxime is: