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 H₂SO₄ (d) 1 M C₂H₅OH
Correct Answer:
1 M H₂SO₄
Explanation:
No explanation […]
Chemistry
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 Answer:
Na₂CO₃
Explanation:
No explanation available. Be the first to write the explanation […]
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) Melting of ice (d) Vaporization of champhor
Correct Answer:
Crystallisation of sucrose from […]
Which of the following is correct relationship
Which of the following is correct relationship
Options
(a) ΔG = ΔH – TΔS (b) ΔG = ΔH + TΔS (c) ΔG + ΔH = TΔS (d) ΔH = ΔG – TΔS
Correct […]
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)
Correct Answer:
bond order=0
Explanation:
Molecular orbital configuration of He₂ is σ 1s², […]
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:
H₂O
Explanation:
No explanation available. Be the first to write the explanation for […]
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) increases very slowly (d) fall
Correct Answer:
increases
Explanation:
With the increase in atomic […]
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) same group (d) same ionic potential
Correct Answer:
same e/m ratio
Explanation: […]
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:
nucleus
Explanation:
No explanation available. Be the first to write the explanation for this question […]
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) isobar
Correct Answer:
isobar
Explanation:
No explanation available. Be the first to write […]