JEE Main 2024 · 4 Apr 2024 Shift 1

The Molarity (M) of an aqueous solution containing 5.85 g of NaCl in 500 mL water is : (Given : Molar Mass Na : 23 and Cl : 35.5 gmol⁻¹)

1. A4
2. B20
3. C0.2
4. D2

Which one of the following molecules has maximum dipole moment ?

1. ANF₃
2. BNH₃
3. CCH₄
4. DPF₅

What will be the decreasing order of basic strength of the following conjugate bases ? −OH, RO⁻, CH₃COO⁻, Cl⁻

1. A−OH > RO⁻ > CH₃COO⁻ > Cl⁻
2. BRO⁻ > −OH > CH₃COO⁻ > Cl⁻
3. CCl⁻ > −OH > RO⁻ > CH₃COO⁻
4. DCl⁻ > RO⁻ > −OH > CH₃COO⁻

One of the commonly used electrode is calomel electrode. Under which of the following categories, calomel electrode comes ?

1. AGas - Ion electrodes
2. BMetal ion - Metal electrodes
3. CMetal - Insoluble Salt - Anion electrodes
4. DOxidation - Reduction electrodes

What pressure (bar) of H₂ would be required to make emf of hydrogen electrode zero in pure water at 25°C?

1. A10⁻⁷
2. B10⁻¹⁴
3. C1
4. D0.5

The correct order of first ionization enthalpy values of the following elements is :

1. AO
2. BN
3. CBe
4. DF
5. EB Choose the correct answer from the options given below :

Number of elements from the following that CANNOT form compounds with valencies which match with their respective group valencies is ________. B, C, N, S, O, F, P, Al, Si

1. A5
2. B3
3. C6
4. D7

Number of molecules/ions from the following in which the central atom is involved in sp³ hybridization is ________. NO₃⁻, BCl₃, ClO₂⁻, ClO₃

1. A1
2. B2
3. C3
4. D4