CUET Questions — Chemistry

Q33. In inorganic salt analysis, for the indicatory test of Cl⁻, conc. H₂SO₄ is used. This is because:

Q20. The pair in which both the species have the same magnetic moment (spin only value) is: (a) [Cr(H2O)6]2+, [CoCl4]2- (b) [Cr(H2O)6]2+, [Fe(H2O)6]2+ (c) [Mn(H2O)6]2+, [Cr(H2O)6]2+ (d) [CoCl4]2-, [Fe

Q39. A brown ring is formed in the ring test for NO3⁻ ion. It is due to the formation of

Q21. Decreasing order of freezing point of 0.1 M aqueous solution of following will be: (A) K4[Fe(CN)6] (B) K2SO4 (C) NH2CONH2 (D) AlCl3 (E) HCl Choose the correct answer from the options given below:

Q14. Rate of a reaction changes from 2.48 x 10-3 mol-1 sec-1 to 4.96 × 10-3mol-1 sec-1 when concentration of reactant, is changed from 0.6 M to 2.4 M respectively, the order of reaction is:

Q20. A+B → Nylon 6, 6 Predict A and B: (a) Ethylene glycol + adipic acid (b) Pentamethylene diamine + adipic acid (c) Hexamethylene amine + tartaric acid (d) Hexamethylene diamine + adipic acid

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)

Q50. The product of complete hydrolysis of XeF6 in the following reaction is XeF6 + H2O→? HF

Q48. Nitrogen family show reducing characters. Least basic amongst the following is: (A) SbH3 (B) BiH3 (C) NH3 (D) PH3 Choose the correct answer from the options given below: (a) (C) Only (b) (A) Only

Q29. The desalination of sea water plant stops working due to which of the following reasons?