Ortho and para-hydrogen have
Options
(a) identical chemical but different physical properties (b) identical physical and chemical properties (c) identical physical but different chemical properties (d) different physical and chemical properties
Correct Answer: […]
Electronic configuration of hydride ion is
Options
(a) 1s¹ (b) 1s² (c) s¹⁺¹ (d) s²⁺
Correct Answer:
1s²
Explanation:
Hydrogen atom = 1s¹, Hydride ion(H⁻) = 1s².
On reaction with Mg, very dilute nitric acid produces
Options
(a) nitric acid (b) hydrogen (c) NH₃ (d) nitrous oxide
Correct Answer:
hydrogen
Explanation:
On reaction with Mg, very dilute nitric acid produces […]
Water has high boiling point because
Options
(a) it is weak acid (b) it is associate with hydrogen bonding (c) it has more lattice energy (d) it has higher molecular weight
Correct Answer: […]
Tritium is the isotope of
Options
(a) carbon (b) sulphur (c) hydrogen (d) oxygen
Correct Answer:
hydrogen
Explanation:
No explanation available. Be the first to write the explanation for this question by […]
ortho and para hydrogen differ in the
Options
(a) nature of spin of protons (b) nature of spin of electrons (c) number of protons (d) molecular weight
Correct Answer:
nature of spin of […]
Heavy water is
Options
(a) water containing sulphate of Ca and Mg (b) water containning heavy ion (c) water at 4° C (d) D₂O
Correct Answer:
D₂O
Explanation:
Heavy water D₂O. It contains […]
H₂O₂ is manufactured these days by
Options
(a) the action of H₂O₂ on BaO₂ (b) the action of H₂SO₄ on Na₂O₂ (c) electrolysis of 50% H₂SO₄ (d) burning hydrogen in excess of oxygen
Correct […]
Ionic hydrides reacts with water to give
Options
(a) hydride ion (b) acidic solution (c) protons (d) basic solution
Correct Answer:
basic solution
Explanation:
No explanation available. Be the first to write the […]
In H₂O₂ molecules, the angle between two O-H planes is
Options
(a) 103⁰ (b) 94⁰ (c) 105⁰ (d) 101⁰
Correct Answer:
94⁰
Explanation:
No explanation available. Be the first to write the explanation […]
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