Chemistry

Which of the following has lowest pH value

Which of the following has lowest pH value Options (a) 1 M HCl (b) 1 M NaOH (c) 1 M…

Which of the following has highest pH value with water

Which of the following has highest pH value with water Options (a) NaHCO₃ (b) NaCl (c) KCl (d) Na₂CO₃ Correct…

In which of the following, the entropy decreases

In which of the following, the entropy decreases Options (a) Crystallisation of sucrose from solution (b) Rusting of iron (c)…

Which of the following is correct relationship

Which of the following is correct relationship Options (a) ΔG = ΔH - TΔS (b) ΔG = ΔH + TΔS…

He₂ does not exist because its

He₂ does not exist because its Options (a) molecular orbital=0 (b) bond energy=0 (c) bond order=0 (d) both(b) and (c)…

Which among the following has the largest dipole moment

Which among the following has the largest dipole moment Options (a) HI (b) H₂O (c) NH₃ (d) SO₃ Correct Answer:…

As the nuclear charge increases from neon to calcium the orbital energy

As the nuclear charge increases from neon to calcium the orbital energy Options (a) increases (b) increase very rapidly (c)…

Mg and Li are similar in their properties due to

Mg and Li are similar in their properties due to Options (a) same e/m ratio (b) same electron affinity (c)…

Rutherford’s experiment led to the discovery of

Rutherford's experiment led to the discovery of Options (a) β-particle (b) α-particle (c) nucleus (d) electron Correct Answer: nucleusExplanation:No explanation…

Elements having same number of nucleons and different number of protons are

Elements having same number of nucleons and different number of protons are Options (a) isotone (b) positron (c) isotope (d)…