CUET Questions — Chemistry

Q23. Which of the following has the highest flocculating power? (a) [Fe(CN)6]4- (b) PO43- (c) SO42- (d) Cl-

Q18. The actual density of a crystal of NaCl is observed to be lower than the expected value. It is caused due to the presence of:

Q31. Yellow colour in NaCl is due to (a) Schottky defect (b) Metal excess defect due to anionic vacancies (c) Frenkel defect (d) Metal deficiency defect

Q25. What is the packing efficiency of simple cubic lattice?

Q34. According to Alexander Zaitsev the most preferred product for dehydrohalogenation of 2-Bromopentane will be:

Q44. Which of the following statement is correct regarding hydrogen fuel cells?

Q44. PH3 is a better reducing agent than NH3 because: (a) PH3 can give its lone pair of electron easily (b) Bond dissociation enthalpy of P-H is low (c) Bond dissociation enthalpy of P-H is high (d) P

Q20. Identify the correct relation between the molar mass of solute and Ebullioscopic constant. (a) M2 = 1000×W2×W1 / (ΔTb×Kb) (b) ΔTb = 1000×W2×Kb×M2 / W1 (c) M2 = 1000×W2×Kb / (ΔTb×W1) (d) M2 = 1000

Q40. Which of the following ion is colourless? (a) Zn2+ (b) Ti3+ (c) Mn3+ (d) Cr3+

Q40. Which of the following reaction occurs at anode during discharging of lead storage battery? (a) PbO2 + SO4 2-(aq) + H+(aq) + 2e- → PbSO4(s) + 2H2O(l) (b) Pb(s) + SO4 2-(aq) → PbSO4(s) + 2e- (c) P