CUET Questions — Chemistry

Q24. Which of the pair(s) are correctly matched? Colloid type (A) Liquid in solids (B) Solid in liquid (C) Solid in Gas (D) Gas in liquid (E) Liquid in Solid Example Gem stones Cell fluids Mist Pumice

Q46. The correct order of reactivity for addition reaction of following carbonyl compounds with C₂H₅MgI: (I) HCHO (II) CH₃COCH₃ (III) CH₃CHO (IV) (CH₃)₃C-CHO Choose the correct answer from the options

Q40. An alkyl halide with molecular formula C₆H₁₃Br on dehydrohalogenation gave two isomeric alkenes A and B with molecular formula C₆H₁₂. On reductive ozonolysis, A and B gave four compounds CH₃COCH₃

Q5. Identify the given name reaction: R-NH₂ + CHCl₃ + 3KOH (Heat) → R-NC + 3KCl + 3H₂O

Q41. What is formalin?

Q34. An aromatic compound 'A' of molecular formula C₇H₇ON undergoes a series of reaction as: C₇H₇ON (A) Br₂/KOH → B NaNO₂ + HCl (273 K) → C CH₃CH₂OH → D Identify compound D:

Q32. Butanone is less reactive than propanal towards nucleophilic addition reaction because: (a) more +I effect found in butanone (b) less +I effect found in butanone (c) more +I effect found in propa

Q9. Identify the name reaction given below: NX / CI (image) Cu/HCl → + N2 + CuX (a) Gatterman Reaction (b) Sandmeyer Reaction (c) Gatterman - Koch Reaction (d) Dow's Process

Q42. Hydrogen fuel cell is an:

Q28. In a thermite process, the reducing agent is (a) C (b) Zn (c) Na (d) Al

Q13. [Cu(en)2]2+ is more stable than [Cu(NH3)4]2+ (a) It is a heteroleptic complex (b) Ethylene diamine has an alkyl group (c) Copper in +2 oxidation state is more stable (d) Ligand is didentate and f

Q1. Match List-I with List-II: List-I (А) Em²+/м for Zn is negative (B) Cr2+ is a reducing agent (C) V2O5 has a low melting point (D) Zr and Hf occur together in nature List-II (I) due to almost ident

Q5. According to the Raoult's law, vapour pressure of a solution is directly proportional to: (a) Mole fraction (b) Part per million (c) Mass percentage (d) Molality

Q31. The correct bond order for carbon-oxygen bond in following metal carbonyls [Cr(CO)6], [V(CO)6]-, [Mn(CO)6]+ is (a) [V(CO)6]- < [Cr(CO)6] < [Mn(CO)6]+ (b) [V(CO)] = [Cr(CO)6] = [Mn(CO)6]+ (c) [Mn(

Q6. When dilute aqueous solution of KI (excess) is added to AgNO3 solution, the charge on the AgI colloidal, particles formed will be:

Q41. Which of the following is the correct statement? (a) Phosphates have no biological significance in humans. (b) Between nitrates and phosphates, phosphates are less abundant in the earth's crust.

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

Q48. At elevated temperature (~1000 K) the dominant form of sulphur is: (a) Rhombic Sulphur (b) Monoclinic Sulphur (c) S8 molecules (d) S2

Q41. Which is not true for the fuel cell?

Q6. A compound is formed by 2 elements P and Q. Atoms of element Q (as anions) makes ccp and those of P (as cations) fill all tetrahedral voids and also occupy half of the octahedral voids. What is th